Home / 103,939.20-155,912.40-32,862.60

Finding the Fourth Proportional to 103,939.20, 155,912.40 and 32,862.60

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Solution

The fourth proportional to 103,939.20, 155,912.40 and 32,862.60 is: 49,295.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,939.20 : 155,912.40 = 32,862.60 : x
  2. Step 2: Convert to fraction form
    103,939.20/155,912.40 = 32,862.60/x
  3. Step 3: Cross multiply
    103,939.20x = 155,912.40 × 32,862.60
  4. Step 4: Simplify right side
    103,939.20x = 5,123,686,836.24
  5. Step 5: Solve for x
    x = 5,123,686,836.24/103,939.20
  6. Step 6: Final answer
    x = 49,295.04

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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.