Home / 126,589.92-174,711.36-72,873.60

Finding the Fourth Proportional to 126,589.92, 174,711.36 and 72,873.60

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Solution

The fourth proportional to 126,589.92, 174,711.36 and 72,873.60 is: 100,575.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,589.92 : 174,711.36 = 72,873.60 : x
  2. Step 2: Convert to fraction form
    126,589.92/174,711.36 = 72,873.60/x
  3. Step 3: Cross multiply
    126,589.92x = 174,711.36 × 72,873.60
  4. Step 4: Simplify right side
    126,589.92x = 12,731,845,764.10
  5. Step 5: Solve for x
    x = 12,731,845,764.10/126,589.92
  6. Step 6: Final answer
    x = 100,575.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.