Home / 138,687.95-191,388.92-75,025.73

Finding the Fourth Proportional to 138,687.95, 191,388.92 and 75,025.73

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Solution

The fourth proportional to 138,687.95, 191,388.92 and 75,025.73 is: 103,535.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,687.95 : 191,388.92 = 75,025.73 : x
  2. Step 2: Convert to fraction form
    138,687.95/191,388.92 = 75,025.73/x
  3. Step 3: Cross multiply
    138,687.95x = 191,388.92 × 75,025.73
  4. Step 4: Simplify right side
    138,687.95x = 14,359,093,540.26
  5. Step 5: Solve for x
    x = 14,359,093,540.26/138,687.95
  6. Step 6: Final answer
    x = 103,535.26

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1.5x scale

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.