Home / 161,115.07-222,338.70-89,501.76

Finding the Fourth Proportional to 161,115.07, 222,338.70 and 89,501.76

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Solution

The fourth proportional to 161,115.07, 222,338.70 and 89,501.76 is: 123,512.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,115.07 : 222,338.70 = 89,501.76 : x
  2. Step 2: Convert to fraction form
    161,115.07/222,338.70 = 89,501.76/x
  3. Step 3: Cross multiply
    161,115.07x = 222,338.70 × 89,501.76
  4. Step 4: Simplify right side
    161,115.07x = 19,899,704,966.11
  5. Step 5: Solve for x
    x = 19,899,704,966.11/161,115.07
  6. Step 6: Final answer
    x = 123,512.38

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Half scale
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Double scale
Find fourth proportional to 161,116.07, 222,340.08 and 89,502.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.