Home / 126,349.12-189,359.70-51,382

Finding the Fourth Proportional to 126,349.12, 189,359.70 and 51,382

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Solution

The fourth proportional to 126,349.12, 189,359.70 and 51,382 is: 77,006.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,349.12 : 189,359.70 = 51,382 : x
  2. Step 2: Convert to fraction form
    126,349.12/189,359.70 = 51,382/x
  3. Step 3: Cross multiply
    126,349.12x = 189,359.70 × 51,382
  4. Step 4: Simplify right side
    126,349.12x = 9,729,680,105.40
  5. Step 5: Solve for x
    x = 9,729,680,105.40/126,349.12
  6. Step 6: Final answer
    x = 77,006.31

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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.