Home / 151,711.32-209,349.18-84,641.88

Finding the Fourth Proportional to 151,711.32, 209,349.18 and 84,641.88

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Solution

The fourth proportional to 151,711.32, 209,349.18 and 84,641.88 is: 116,798.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,711.32 : 209,349.18 = 84,641.88 : x
  2. Step 2: Convert to fraction form
    151,711.32/209,349.18 = 84,641.88/x
  3. Step 3: Cross multiply
    151,711.32x = 209,349.18 × 84,641.88
  4. Step 4: Simplify right side
    151,711.32x = 17,719,708,171.66
  5. Step 5: Solve for x
    x = 17,719,708,171.66/151,711.32
  6. Step 6: Final answer
    x = 116,798.85

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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.