Home / 125,272.61-172,644.40-88,975.70

Finding the Fourth Proportional to 125,272.61, 172,644.40 and 88,975.70

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Solution

The fourth proportional to 125,272.61, 172,644.40 and 88,975.70 is: 122,621.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,272.61 : 172,644.40 = 88,975.70 : x
  2. Step 2: Convert to fraction form
    125,272.61/172,644.40 = 88,975.70/x
  3. Step 3: Cross multiply
    125,272.61x = 172,644.40 × 88,975.70
  4. Step 4: Simplify right side
    125,272.61x = 15,361,156,839.72
  5. Step 5: Solve for x
    x = 15,361,156,839.72/125,272.61
  6. Step 6: Final answer
    x = 122,621.83

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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.