Home / 138,727.46-191,444.24-75,065.92

Finding the Fourth Proportional to 138,727.46, 191,444.24 and 75,065.92

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Solution

The fourth proportional to 138,727.46, 191,444.24 and 75,065.92 is: 103,591.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,727.46 : 191,444.24 = 75,065.92 : x
  2. Step 2: Convert to fraction form
    138,727.46/191,444.24 = 75,065.92/x
  3. Step 3: Cross multiply
    138,727.46x = 191,444.24 × 75,065.92
  4. Step 4: Simplify right side
    138,727.46x = 14,370,938,004.30
  5. Step 5: Solve for x
    x = 14,370,938,004.30/138,727.46
  6. Step 6: Final answer
    x = 103,591.16

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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.