Home / 132,830.40-198,669.60-118,891.20

Finding the Fourth Proportional to 132,830.40, 198,669.60 and 118,891.20

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Solution

The fourth proportional to 132,830.40, 198,669.60 and 118,891.20 is: 177,821.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,830.40 : 198,669.60 = 118,891.20 : x
  2. Step 2: Convert to fraction form
    132,830.40/198,669.60 = 118,891.20/x
  3. Step 3: Cross multiply
    132,830.40x = 198,669.60 × 118,891.20
  4. Step 4: Simplify right side
    132,830.40x = 23,620,067,147.52
  5. Step 5: Solve for x
    x = 23,620,067,147.52/132,830.40
  6. Step 6: Final answer
    x = 177,821.25

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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.