Home / 161,019.57-222,207.48-89,399.76

Finding the Fourth Proportional to 161,019.57, 222,207.48 and 89,399.76

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Solution

The fourth proportional to 161,019.57, 222,207.48 and 89,399.76 is: 123,371.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,019.57 : 222,207.48 = 89,399.76 : x
  2. Step 2: Convert to fraction form
    161,019.57/222,207.48 = 89,399.76/x
  3. Step 3: Cross multiply
    161,019.57x = 222,207.48 × 89,399.76
  4. Step 4: Simplify right side
    161,019.57x = 19,865,295,382.20
  5. Step 5: Solve for x
    x = 19,865,295,382.20/161,019.57
  6. Step 6: Final answer
    x = 123,371.93

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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.