Home / 92,280.52-138,350.20-76,436.92

Finding the Fourth Proportional to 92,280.52, 138,350.20 and 76,436.92

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Solution

The fourth proportional to 92,280.52, 138,350.20 and 76,436.92 is: 114,596.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,280.52 : 138,350.20 = 76,436.92 : x
  2. Step 2: Convert to fraction form
    92,280.52/138,350.20 = 76,436.92/x
  3. Step 3: Cross multiply
    92,280.52x = 138,350.20 × 76,436.92
  4. Step 4: Simplify right side
    92,280.52x = 10,575,063,169.38
  5. Step 5: Solve for x
    x = 10,575,063,169.38/92,280.52
  6. Step 6: Final answer
    x = 114,596.92

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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.