Home / 137,743.40-206,615.10-48,999.80

Finding the Fourth Proportional to 137,743.40, 206,615.10 and 48,999.80

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Solution

The fourth proportional to 137,743.40, 206,615.10 and 48,999.80 is: 73,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,743.40 : 206,615.10 = 48,999.80 : x
  2. Step 2: Convert to fraction form
    137,743.40/206,615.10 = 48,999.80/x
  3. Step 3: Cross multiply
    137,743.40x = 206,615.10 × 48,999.80
  4. Step 4: Simplify right side
    137,743.40x = 10,124,098,576.98
  5. Step 5: Solve for x
    x = 10,124,098,576.98/137,743.40
  6. Step 6: Final answer
    x = 73,499.70

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Similar ratio
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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.