Home / 144,132.90-198,899.25-80,469.33

Finding the Fourth Proportional to 144,132.90, 198,899.25 and 80,469.33

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Solution

The fourth proportional to 144,132.90, 198,899.25 and 80,469.33 is: 111,045.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,132.90 : 198,899.25 = 80,469.33 : x
  2. Step 2: Convert to fraction form
    144,132.90/198,899.25 = 80,469.33/x
  3. Step 3: Cross multiply
    144,132.90x = 198,899.25 × 80,469.33
  4. Step 4: Simplify right side
    144,132.90x = 16,005,289,385.00
  5. Step 5: Solve for x
    x = 16,005,289,385.00/144,132.90
  6. Step 6: Final answer
    x = 111,045.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.