Home / 132,617.20-198,925.80-126,858.10

Finding the Fourth Proportional to 132,617.20, 198,925.80 and 126,858.10

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Solution

The fourth proportional to 132,617.20, 198,925.80 and 126,858.10 is: 190,287.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,617.20 : 198,925.80 = 126,858.10 : x
  2. Step 2: Convert to fraction form
    132,617.20/198,925.80 = 126,858.10/x
  3. Step 3: Cross multiply
    132,617.20x = 198,925.80 × 126,858.10
  4. Step 4: Simplify right side
    132,617.20x = 25,235,349,028.98
  5. Step 5: Solve for x
    x = 25,235,349,028.98/132,617.20
  6. Step 6: Final answer
    x = 190,287.15

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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.