Home / 144,084.96-198,840.24-80,425.44

Finding the Fourth Proportional to 144,084.96, 198,840.24 and 80,425.44

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Solution

The fourth proportional to 144,084.96, 198,840.24 and 80,425.44 is: 110,988.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,084.96 : 198,840.24 = 80,425.44 : x
  2. Step 2: Convert to fraction form
    144,084.96/198,840.24 = 80,425.44/x
  3. Step 3: Cross multiply
    144,084.96x = 198,840.24 × 80,425.44
  4. Step 4: Simplify right side
    144,084.96x = 15,991,813,791.71
  5. Step 5: Solve for x
    x = 15,991,813,791.71/144,084.96
  6. Step 6: Final answer
    x = 110,988.78

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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.