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Finding the Fourth Proportional to 92,137.20, 138,205.80 and 62,612.70

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Solution

The fourth proportional to 92,137.20, 138,205.80 and 62,612.70 is: 93,919.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,137.20 : 138,205.80 = 62,612.70 : x
  2. Step 2: Convert to fraction form
    92,137.20/138,205.80 = 62,612.70/x
  3. Step 3: Cross multiply
    92,137.20x = 138,205.80 × 62,612.70
  4. Step 4: Simplify right side
    92,137.20x = 8,653,438,293.66
  5. Step 5: Solve for x
    x = 8,653,438,293.66/92,137.20
  6. Step 6: Final answer
    x = 93,919.05

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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.