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Finding the Fourth Proportional to 126,654.80, 174,932.34 and 101,249.15

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Solution

The fourth proportional to 126,654.80, 174,932.34 and 101,249.15 is: 139,842.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,654.80 : 174,932.34 = 101,249.15 : x
  2. Step 2: Convert to fraction form
    126,654.80/174,932.34 = 101,249.15/x
  3. Step 3: Cross multiply
    126,654.80x = 174,932.34 × 101,249.15
  4. Step 4: Simplify right side
    126,654.80x = 17,711,750,732.51
  5. Step 5: Solve for x
    x = 17,711,750,732.51/126,654.80
  6. Step 6: Final answer
    x = 139,842.71

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1.5x scale

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.