Home / 92,279.20-138,418.80-90,529.60

Finding the Fourth Proportional to 92,279.20, 138,418.80 and 90,529.60

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Solution

The fourth proportional to 92,279.20, 138,418.80 and 90,529.60 is: 135,794.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,279.20 : 138,418.80 = 90,529.60 : x
  2. Step 2: Convert to fraction form
    92,279.20/138,418.80 = 90,529.60/x
  3. Step 3: Cross multiply
    92,279.20x = 138,418.80 × 90,529.60
  4. Step 4: Simplify right side
    92,279.20x = 12,530,998,596.48
  5. Step 5: Solve for x
    x = 12,530,998,596.48/92,279.20
  6. Step 6: Final answer
    x = 135,794.40

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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.