Home / 157,387.17-217,187.53-89,403.94

Finding the Fourth Proportional to 157,387.17, 217,187.53 and 89,403.94

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Solution

The fourth proportional to 157,387.17, 217,187.53 and 89,403.94 is: 123,373.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,387.17 : 217,187.53 = 89,403.94 : x
  2. Step 2: Convert to fraction form
    157,387.17/217,187.53 = 89,403.94/x
  3. Step 3: Cross multiply
    157,387.17x = 217,187.53 × 89,403.94
  4. Step 4: Simplify right side
    157,387.17x = 19,417,420,900.87
  5. Step 5: Solve for x
    x = 19,417,420,900.87/157,387.17
  6. Step 6: Final answer
    x = 123,373.59

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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.