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Finding the Fourth Proportional to 137,517.68, 206,276.68 and 37,678.74

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Solution

The fourth proportional to 137,517.68, 206,276.68 and 37,678.74 is: 56,518.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,517.68 : 206,276.68 = 37,678.74 : x
  2. Step 2: Convert to fraction form
    137,517.68/206,276.68 = 37,678.74/x
  3. Step 3: Cross multiply
    137,517.68x = 206,276.68 × 37,678.74
  4. Step 4: Simplify right side
    137,517.68x = 7,772,245,393.78
  5. Step 5: Solve for x
    x = 7,772,245,393.78/137,517.68
  6. Step 6: Final answer
    x = 56,518.15

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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.