Home / 157,699.28-217,592.52-90,618.32

Finding the Fourth Proportional to 157,699.28, 217,592.52 and 90,618.32

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Solution

The fourth proportional to 157,699.28, 217,592.52 and 90,618.32 is: 125,034.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,699.28 : 217,592.52 = 90,618.32 : x
  2. Step 2: Convert to fraction form
    157,699.28/217,592.52 = 90,618.32/x
  3. Step 3: Cross multiply
    157,699.28x = 217,592.52 × 90,618.32
  4. Step 4: Simplify right side
    157,699.28x = 19,717,868,606.97
  5. Step 5: Solve for x
    x = 19,717,868,606.97/157,699.28
  6. Step 6: Final answer
    x = 125,034.61

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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.