Home / 126,491.88-174,565.56-72,785.10

Finding the Fourth Proportional to 126,491.88, 174,565.56 and 72,785.10

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Solution

The fourth proportional to 126,491.88, 174,565.56 and 72,785.10 is: 100,447.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,491.88 : 174,565.56 = 72,785.10 : x
  2. Step 2: Convert to fraction form
    126,491.88/174,565.56 = 72,785.10/x
  3. Step 3: Cross multiply
    126,491.88x = 174,565.56 × 72,785.10
  4. Step 4: Simplify right side
    126,491.88x = 12,705,771,741.16
  5. Step 5: Solve for x
    x = 12,705,771,741.16/126,491.88
  6. Step 6: Final answer
    x = 100,447.33

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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.