Home / 148,079.75-204,350.19-81,011.75

Finding the Fourth Proportional to 148,079.75, 204,350.19 and 81,011.75

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Solution

The fourth proportional to 148,079.75, 204,350.19 and 81,011.75 is: 111,796.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,079.75 : 204,350.19 = 81,011.75 : x
  2. Step 2: Convert to fraction form
    148,079.75/204,350.19 = 81,011.75/x
  3. Step 3: Cross multiply
    148,079.75x = 204,350.19 × 81,011.75
  4. Step 4: Simplify right side
    148,079.75x = 16,554,766,504.73
  5. Step 5: Solve for x
    x = 16,554,766,504.73/148,079.75
  6. Step 6: Final answer
    x = 111,796.29

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1.5x scale

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.