Home / 157,724.23-217,656.55-89,739.71

Finding the Fourth Proportional to 157,724.23, 217,656.55 and 89,739.71

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Solution

The fourth proportional to 157,724.23, 217,656.55 and 89,739.71 is: 123,839.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,724.23 : 217,656.55 = 89,739.71 : x
  2. Step 2: Convert to fraction form
    157,724.23/217,656.55 = 89,739.71/x
  3. Step 3: Cross multiply
    157,724.23x = 217,656.55 × 89,739.71
  4. Step 4: Simplify right side
    157,724.23x = 19,532,435,227.90
  5. Step 5: Solve for x
    x = 19,532,435,227.90/157,724.23
  6. Step 6: Final answer
    x = 123,839.16

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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.