Home / 238,147.32-328,640.51-129,251.85

Finding the Fourth Proportional to 238,147.32, 328,640.51 and 129,251.85

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Solution

The fourth proportional to 238,147.32, 328,640.51 and 129,251.85 is: 178,366.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,147.32 : 328,640.51 = 129,251.85 : x
  2. Step 2: Convert to fraction form
    238,147.32/328,640.51 = 129,251.85/x
  3. Step 3: Cross multiply
    238,147.32x = 328,640.51 × 129,251.85
  4. Step 4: Simplify right side
    238,147.32x = 42,477,394,841.77
  5. Step 5: Solve for x
    x = 42,477,394,841.77/238,147.32
  6. Step 6: Final answer
    x = 178,366.04

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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.