Home / 126,500.52-189,781.91-89,133.57

Finding the Fourth Proportional to 126,500.52, 189,781.91 and 89,133.57

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Solution

The fourth proportional to 126,500.52, 189,781.91 and 89,133.57 is: 133,722.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,500.52 : 189,781.91 = 89,133.57 : x
  2. Step 2: Convert to fraction form
    126,500.52/189,781.91 = 89,133.57/x
  3. Step 3: Cross multiply
    126,500.52x = 189,781.91 × 89,133.57
  4. Step 4: Simplify right side
    126,500.52x = 16,915,939,893.29
  5. Step 5: Solve for x
    x = 16,915,939,893.29/126,500.52
  6. Step 6: Final answer
    x = 133,722.30

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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.