Home / 137,990.46-207,010.30-38,148.45

Finding the Fourth Proportional to 137,990.46, 207,010.30 and 38,148.45

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Solution

The fourth proportional to 137,990.46, 207,010.30 and 38,148.45 is: 57,229.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,990.46 : 207,010.30 = 38,148.45 : x
  2. Step 2: Convert to fraction form
    137,990.46/207,010.30 = 38,148.45/x
  3. Step 3: Cross multiply
    137,990.46x = 207,010.30 × 38,148.45
  4. Step 4: Simplify right side
    137,990.46x = 7,897,122,079.04
  5. Step 5: Solve for x
    x = 7,897,122,079.04/137,990.46
  6. Step 6: Final answer
    x = 57,229.48

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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.