Home / 239,565.15-330,587.97-132,128.78

Finding the Fourth Proportional to 239,565.15, 330,587.97 and 132,128.78

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Solution

The fourth proportional to 239,565.15, 330,587.97 and 132,128.78 is: 182,331.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,565.15 : 330,587.97 = 132,128.78 : x
  2. Step 2: Convert to fraction form
    239,565.15/330,587.97 = 132,128.78/x
  3. Step 3: Cross multiply
    239,565.15x = 330,587.97 × 132,128.78
  4. Step 4: Simplify right side
    239,565.15x = 43,680,183,505.84
  5. Step 5: Solve for x
    x = 43,680,183,505.84/239,565.15
  6. Step 6: Final answer
    x = 182,331.13

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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.