Home / 137,586.14-189,788.24-86,517.87

Finding the Fourth Proportional to 137,586.14, 189,788.24 and 86,517.87

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Solution

The fourth proportional to 137,586.14, 189,788.24 and 86,517.87 is: 119,343.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,586.14 : 189,788.24 = 86,517.87 : x
  2. Step 2: Convert to fraction form
    137,586.14/189,788.24 = 86,517.87/x
  3. Step 3: Cross multiply
    137,586.14x = 189,788.24 × 86,517.87
  4. Step 4: Simplify right side
    137,586.14x = 16,420,074,604.66
  5. Step 5: Solve for x
    x = 16,420,074,604.66/137,586.14
  6. Step 6: Final answer
    x = 119,343.95

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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.