Home / 132,489.96-198,275.67-126,978.72

Finding the Fourth Proportional to 132,489.96, 198,275.67 and 126,978.72

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Solution

The fourth proportional to 132,489.96, 198,275.67 and 126,978.72 is: 190,027.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,489.96 : 198,275.67 = 126,978.72 : x
  2. Step 2: Convert to fraction form
    132,489.96/198,275.67 = 126,978.72/x
  3. Step 3: Cross multiply
    132,489.96x = 198,275.67 × 126,978.72
  4. Step 4: Simplify right side
    132,489.96x = 25,176,790,783.74
  5. Step 5: Solve for x
    x = 25,176,790,783.74/132,489.96
  6. Step 6: Final answer
    x = 190,027.91

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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.