Home / 132,022.40-198,033.60-43,278.80

Finding the Fourth Proportional to 132,022.40, 198,033.60 and 43,278.80

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Solution

The fourth proportional to 132,022.40, 198,033.60 and 43,278.80 is: 64,918.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,022.40 : 198,033.60 = 43,278.80 : x
  2. Step 2: Convert to fraction form
    132,022.40/198,033.60 = 43,278.80/x
  3. Step 3: Cross multiply
    132,022.40x = 198,033.60 × 43,278.80
  4. Step 4: Simplify right side
    132,022.40x = 8,570,656,567.68
  5. Step 5: Solve for x
    x = 8,570,656,567.68/132,022.40
  6. Step 6: Final answer
    x = 64,918.20

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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.