Home / 125,373.20-172,980.52-80,687.12

Finding the Fourth Proportional to 125,373.20, 172,980.52 and 80,687.12

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Solution

The fourth proportional to 125,373.20, 172,980.52 and 80,687.12 is: 111,326.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,373.20 : 172,980.52 = 80,687.12 : x
  2. Step 2: Convert to fraction form
    125,373.20/172,980.52 = 80,687.12/x
  3. Step 3: Cross multiply
    125,373.20x = 172,980.52 × 80,687.12
  4. Step 4: Simplify right side
    125,373.20x = 13,957,299,974.90
  5. Step 5: Solve for x
    x = 13,957,299,974.90/125,373.20
  6. Step 6: Final answer
    x = 111,326.02

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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.