Home / 192,517.28-288,825.12-74,156.84

Finding the Fourth Proportional to 192,517.28, 288,825.12 and 74,156.84

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Solution

The fourth proportional to 192,517.28, 288,825.12 and 74,156.84 is: 111,254.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,517.28 : 288,825.12 = 74,156.84 : x
  2. Step 2: Convert to fraction form
    192,517.28/288,825.12 = 74,156.84/x
  3. Step 3: Cross multiply
    192,517.28x = 288,825.12 × 74,156.84
  4. Step 4: Simplify right side
    192,517.28x = 21,418,356,767.70
  5. Step 5: Solve for x
    x = 21,418,356,767.70/192,517.28
  6. Step 6: Final answer
    x = 111,254.21

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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.