Home / 126,497.28-189,920.88-64,211.52

Finding the Fourth Proportional to 126,497.28, 189,920.88 and 64,211.52

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Solution

The fourth proportional to 126,497.28, 189,920.88 and 64,211.52 is: 96,406.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,497.28 : 189,920.88 = 64,211.52 : x
  2. Step 2: Convert to fraction form
    126,497.28/189,920.88 = 64,211.52/x
  3. Step 3: Cross multiply
    126,497.28x = 189,920.88 × 64,211.52
  4. Step 4: Simplify right side
    126,497.28x = 12,195,108,384.54
  5. Step 5: Solve for x
    x = 12,195,108,384.54/126,497.28
  6. Step 6: Final answer
    x = 96,406.09

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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.