Home / 161,331.17-222,627.80-89,709.63

Finding the Fourth Proportional to 161,331.17, 222,627.80 and 89,709.63

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Solution

The fourth proportional to 161,331.17, 222,627.80 and 89,709.63 is: 123,794.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,331.17 : 222,627.80 = 89,709.63 : x
  2. Step 2: Convert to fraction form
    161,331.17/222,627.80 = 89,709.63/x
  3. Step 3: Cross multiply
    161,331.17x = 222,627.80 × 89,709.63
  4. Step 4: Simplify right side
    161,331.17x = 19,971,857,117.17
  5. Step 5: Solve for x
    x = 19,971,857,117.17/161,331.17
  6. Step 6: Final answer
    x = 123,794.17

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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.