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Finding the Fourth Proportional to 137,679.99, 206,532.27 and 42,910.97

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Solution

The fourth proportional to 137,679.99, 206,532.27 and 42,910.97 is: 64,370.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,679.99 : 206,532.27 = 42,910.97 : x
  2. Step 2: Convert to fraction form
    137,679.99/206,532.27 = 42,910.97/x
  3. Step 3: Cross multiply
    137,679.99x = 206,532.27 × 42,910.97
  4. Step 4: Simplify right side
    137,679.99x = 8,862,499,009.34
  5. Step 5: Solve for x
    x = 8,862,499,009.34/137,679.99
  6. Step 6: Final answer
    x = 64,370.28

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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.