Home / 92,279.20-138,332.40-72,277.60

Finding the Fourth Proportional to 92,279.20, 138,332.40 and 72,277.60

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Solution

The fourth proportional to 92,279.20, 138,332.40 and 72,277.60 is: 108,348.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,279.20 : 138,332.40 = 72,277.60 : x
  2. Step 2: Convert to fraction form
    92,279.20/138,332.40 = 72,277.60/x
  3. Step 3: Cross multiply
    92,279.20x = 138,332.40 × 72,277.60
  4. Step 4: Simplify right side
    92,279.20x = 9,998,333,874.24
  5. Step 5: Solve for x
    x = 9,998,333,874.24/92,279.20
  6. Step 6: Final answer
    x = 108,348.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.