Home / 92,488.20-138,732.30-82,646.70

Finding the Fourth Proportional to 92,488.20, 138,732.30 and 82,646.70

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Solution

The fourth proportional to 92,488.20, 138,732.30 and 82,646.70 is: 123,970.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,488.20 : 138,732.30 = 82,646.70 : x
  2. Step 2: Convert to fraction form
    92,488.20/138,732.30 = 82,646.70/x
  3. Step 3: Cross multiply
    92,488.20x = 138,732.30 × 82,646.70
  4. Step 4: Simplify right side
    92,488.20x = 11,465,766,778.41
  5. Step 5: Solve for x
    x = 11,465,766,778.41/92,488.20
  6. Step 6: Final answer
    x = 123,970.05

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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.