Home / 126,371.73-174,391.86-69,781.89

Finding the Fourth Proportional to 126,371.73, 174,391.86 and 69,781.89

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Solution

The fourth proportional to 126,371.73, 174,391.86 and 69,781.89 is: 96,298.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,371.73 : 174,391.86 = 69,781.89 : x
  2. Step 2: Convert to fraction form
    126,371.73/174,391.86 = 69,781.89/x
  3. Step 3: Cross multiply
    126,371.73x = 174,391.86 × 69,781.89
  4. Step 4: Simplify right side
    126,371.73x = 12,169,393,591.42
  5. Step 5: Solve for x
    x = 12,169,393,591.42/126,371.73
  6. Step 6: Final answer
    x = 96,298.39

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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.