Home / 148,799.31-205,344.53-80,817.61

Finding the Fourth Proportional to 148,799.31, 205,344.53 and 80,817.61

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Solution

The fourth proportional to 148,799.31, 205,344.53 and 80,817.61 is: 111,529.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,799.31 : 205,344.53 = 80,817.61 : x
  2. Step 2: Convert to fraction form
    148,799.31/205,344.53 = 80,817.61/x
  3. Step 3: Cross multiply
    148,799.31x = 205,344.53 × 80,817.61
  4. Step 4: Simplify right side
    148,799.31x = 16,595,454,141.17
  5. Step 5: Solve for x
    x = 16,595,454,141.17/148,799.31
  6. Step 6: Final answer
    x = 111,529.11

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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.