Home / 148,677.29-205,176.12-80,694.87

Finding the Fourth Proportional to 148,677.29, 205,176.12 and 80,694.87

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Solution

The fourth proportional to 148,677.29, 205,176.12 and 80,694.87 is: 111,359.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,677.29 : 205,176.12 = 80,694.87 : x
  2. Step 2: Convert to fraction form
    148,677.29/205,176.12 = 80,694.87/x
  3. Step 3: Cross multiply
    148,677.29x = 205,176.12 × 80,694.87
  4. Step 4: Simplify right side
    148,677.29x = 16,556,658,901.15
  5. Step 5: Solve for x
    x = 16,556,658,901.15/148,677.29
  6. Step 6: Final answer
    x = 111,359.70

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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.