Home / 148,677.28-205,175.20-80,694.24

Finding the Fourth Proportional to 148,677.28, 205,175.20 and 80,694.24

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Solution

The fourth proportional to 148,677.28, 205,175.20 and 80,694.24 is: 111,358.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,677.28 : 205,175.20 = 80,694.24 : x
  2. Step 2: Convert to fraction form
    148,677.28/205,175.20 = 80,694.24/x
  3. Step 3: Cross multiply
    148,677.28x = 205,175.20 × 80,694.24
  4. Step 4: Simplify right side
    148,677.28x = 16,556,456,830.85
  5. Step 5: Solve for x
    x = 16,556,456,830.85/148,677.28
  6. Step 6: Final answer
    x = 111,358.35

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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.