Home / 126,158.97-189,024.22-76,133.95

Finding the Fourth Proportional to 126,158.97, 189,024.22 and 76,133.95

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Solution

The fourth proportional to 126,158.97, 189,024.22 and 76,133.95 is: 114,071.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,158.97 : 189,024.22 = 76,133.95 : x
  2. Step 2: Convert to fraction form
    126,158.97/189,024.22 = 76,133.95/x
  3. Step 3: Cross multiply
    126,158.97x = 189,024.22 × 76,133.95
  4. Step 4: Simplify right side
    126,158.97x = 14,391,160,514.27
  5. Step 5: Solve for x
    x = 14,391,160,514.27/126,158.97
  6. Step 6: Final answer
    x = 114,071.64

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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.