Home / 126,575.20-189,862.98-51,695.36

Finding the Fourth Proportional to 126,575.20, 189,862.98 and 51,695.36

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Solution

The fourth proportional to 126,575.20, 189,862.98 and 51,695.36 is: 77,543.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,575.20 : 189,862.98 = 51,695.36 : x
  2. Step 2: Convert to fraction form
    126,575.20/189,862.98 = 51,695.36/x
  3. Step 3: Cross multiply
    126,575.20x = 189,862.98 × 51,695.36
  4. Step 4: Simplify right side
    126,575.20x = 9,815,035,101.77
  5. Step 5: Solve for x
    x = 9,815,035,101.77/126,575.20
  6. Step 6: Final answer
    x = 77,543.11

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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.