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Finding the Fourth Proportional to 137,809.30, 206,701.80 and 37,960.60

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Solution

The fourth proportional to 137,809.30, 206,701.80 and 37,960.60 is: 56,937.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,809.30 : 206,701.80 = 37,960.60 : x
  2. Step 2: Convert to fraction form
    137,809.30/206,701.80 = 37,960.60/x
  3. Step 3: Cross multiply
    137,809.30x = 206,701.80 × 37,960.60
  4. Step 4: Simplify right side
    137,809.30x = 7,846,524,349.08
  5. Step 5: Solve for x
    x = 7,846,524,349.08/137,809.30
  6. Step 6: Final answer
    x = 56,937.55

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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.