Home / 157,342.49-217,132.88-89,359.46

Finding the Fourth Proportional to 157,342.49, 217,132.88 and 89,359.46

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Solution

The fourth proportional to 157,342.49, 217,132.88 and 89,359.46 is: 123,316.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,342.49 : 217,132.88 = 89,359.46 : x
  2. Step 2: Convert to fraction form
    157,342.49/217,132.88 = 89,359.46/x
  3. Step 3: Cross multiply
    157,342.49x = 217,132.88 × 89,359.46
  4. Step 4: Simplify right side
    157,342.49x = 19,402,876,905.04
  5. Step 5: Solve for x
    x = 19,402,876,905.04/157,342.49
  6. Step 6: Final answer
    x = 123,316.19

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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.