Home / 135,123.16-202,713.72-40,360.80

Finding the Fourth Proportional to 135,123.16, 202,713.72 and 40,360.80

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Solution

The fourth proportional to 135,123.16, 202,713.72 and 40,360.80 is: 60,549.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,123.16 : 202,713.72 = 40,360.80 : x
  2. Step 2: Convert to fraction form
    135,123.16/202,713.72 = 40,360.80/x
  3. Step 3: Cross multiply
    135,123.16x = 202,713.72 × 40,360.80
  4. Step 4: Simplify right side
    135,123.16x = 8,181,687,910.18
  5. Step 5: Solve for x
    x = 8,181,687,910.18/135,123.16
  6. Step 6: Final answer
    x = 60,549.86

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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.