Home / 132,489.59-198,275.11-126,978.35

Finding the Fourth Proportional to 132,489.59, 198,275.11 and 126,978.35

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Solution

The fourth proportional to 132,489.59, 198,275.11 and 126,978.35 is: 190,027.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,489.59 : 198,275.11 = 126,978.35 : x
  2. Step 2: Convert to fraction form
    132,489.59/198,275.11 = 126,978.35/x
  3. Step 3: Cross multiply
    132,489.59x = 198,275.11 × 126,978.35
  4. Step 4: Simplify right side
    132,489.59x = 25,176,645,005.05
  5. Step 5: Solve for x
    x = 25,176,645,005.05/132,489.59
  6. Step 6: Final answer
    x = 190,027.35

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1.5x scale

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.