Home / 126,119.65-189,178.79-54,061.95

Finding the Fourth Proportional to 126,119.65, 189,178.79 and 54,061.95

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Solution

The fourth proportional to 126,119.65, 189,178.79 and 54,061.95 is: 81,092.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,119.65 : 189,178.79 = 54,061.95 : x
  2. Step 2: Convert to fraction form
    126,119.65/189,178.79 = 54,061.95/x
  3. Step 3: Cross multiply
    126,119.65x = 189,178.79 × 54,061.95
  4. Step 4: Simplify right side
    126,119.65x = 10,227,373,677.94
  5. Step 5: Solve for x
    x = 10,227,373,677.94/126,119.65
  6. Step 6: Final answer
    x = 81,092.63

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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.