Home / 126,159.97-189,025.72-76,134.95

Finding the Fourth Proportional to 126,159.97, 189,025.72 and 76,134.95

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Solution

The fourth proportional to 126,159.97, 189,025.72 and 76,134.95 is: 114,073.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,159.97 : 189,025.72 = 76,134.95 : x
  2. Step 2: Convert to fraction form
    126,159.97/189,025.72 = 76,134.95/x
  3. Step 3: Cross multiply
    126,159.97x = 189,025.72 × 76,134.95
  4. Step 4: Simplify right side
    126,159.97x = 14,391,463,740.91
  5. Step 5: Solve for x
    x = 14,391,463,740.91/126,159.97
  6. Step 6: Final answer
    x = 114,073.14

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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.