Home / 157,553.68-217,469.04-89,607.28

Finding the Fourth Proportional to 157,553.68, 217,469.04 and 89,607.28

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Solution

The fourth proportional to 157,553.68, 217,469.04 and 89,607.28 is: 123,683.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,553.68 : 217,469.04 = 89,607.28 : x
  2. Step 2: Convert to fraction form
    157,553.68/217,469.04 = 89,607.28/x
  3. Step 3: Cross multiply
    157,553.68x = 217,469.04 × 89,607.28
  4. Step 4: Simplify right side
    157,553.68x = 19,486,809,158.61
  5. Step 5: Solve for x
    x = 19,486,809,158.61/157,553.68
  6. Step 6: Final answer
    x = 123,683.62

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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.