Home / 132,568.40-198,276.60-118,629.20

Finding the Fourth Proportional to 132,568.40, 198,276.60 and 118,629.20

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Solution

The fourth proportional to 132,568.40, 198,276.60 and 118,629.20 is: 177,428.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,568.40 : 198,276.60 = 118,629.20 : x
  2. Step 2: Convert to fraction form
    132,568.40/198,276.60 = 118,629.20/x
  3. Step 3: Cross multiply
    132,568.40x = 198,276.60 × 118,629.20
  4. Step 4: Simplify right side
    132,568.40x = 23,521,394,436.72
  5. Step 5: Solve for x
    x = 23,521,394,436.72/132,568.40
  6. Step 6: Final answer
    x = 177,428.36

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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.