Home / 148,031.46-204,286.41-80,967.78

Finding the Fourth Proportional to 148,031.46, 204,286.41 and 80,967.78

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Solution

The fourth proportional to 148,031.46, 204,286.41 and 80,967.78 is: 111,737.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,031.46 : 204,286.41 = 80,967.78 : x
  2. Step 2: Convert to fraction form
    148,031.46/204,286.41 = 80,967.78/x
  3. Step 3: Cross multiply
    148,031.46x = 204,286.41 × 80,967.78
  4. Step 4: Simplify right side
    148,031.46x = 16,540,617,101.87
  5. Step 5: Solve for x
    x = 16,540,617,101.87/148,031.46
  6. Step 6: Final answer
    x = 111,737.17

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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.