Home / 135,728.30-187,305.29-75,298.95

Finding the Fourth Proportional to 135,728.30, 187,305.29 and 75,298.95

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Solution

The fourth proportional to 135,728.30, 187,305.29 and 75,298.95 is: 103,912.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,728.30 : 187,305.29 = 75,298.95 : x
  2. Step 2: Convert to fraction form
    135,728.30/187,305.29 = 75,298.95/x
  3. Step 3: Cross multiply
    135,728.30x = 187,305.29 × 75,298.95
  4. Step 4: Simplify right side
    135,728.30x = 14,103,891,572.32
  5. Step 5: Solve for x
    x = 14,103,891,572.32/135,728.30
  6. Step 6: Final answer
    x = 103,912.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.