Home / 157,788.32-217,718.57-89,801.25

Finding the Fourth Proportional to 157,788.32, 217,718.57 and 89,801.25

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Solution

The fourth proportional to 157,788.32, 217,718.57 and 89,801.25 is: 123,909.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,788.32 : 217,718.57 = 89,801.25 : x
  2. Step 2: Convert to fraction form
    157,788.32/217,718.57 = 89,801.25/x
  3. Step 3: Cross multiply
    157,788.32x = 217,718.57 × 89,801.25
  4. Step 4: Simplify right side
    157,788.32x = 19,551,399,285.21
  5. Step 5: Solve for x
    x = 19,551,399,285.21/157,788.32
  6. Step 6: Final answer
    x = 123,909.04

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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.