Home / 132,490.09-198,275.86-126,978.85

Finding the Fourth Proportional to 132,490.09, 198,275.86 and 126,978.85

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Solution

The fourth proportional to 132,490.09, 198,275.86 and 126,978.85 is: 190,028.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,490.09 : 198,275.86 = 126,978.85 : x
  2. Step 2: Convert to fraction form
    132,490.09/198,275.86 = 126,978.85/x
  3. Step 3: Cross multiply
    132,490.09x = 198,275.86 × 126,978.85
  4. Step 4: Simplify right side
    132,490.09x = 25,176,839,376.73
  5. Step 5: Solve for x
    x = 25,176,839,376.73/132,490.09
  6. Step 6: Final answer
    x = 190,028.10

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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.