Home / 144,141.76-198,915.24-80,494.66

Finding the Fourth Proportional to 144,141.76, 198,915.24 and 80,494.66

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Solution

The fourth proportional to 144,141.76, 198,915.24 and 80,494.66 is: 111,082.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,141.76 : 198,915.24 = 80,494.66 : x
  2. Step 2: Convert to fraction form
    144,141.76/198,915.24 = 80,494.66/x
  3. Step 3: Cross multiply
    144,141.76x = 198,915.24 × 80,494.66
  4. Step 4: Simplify right side
    144,141.76x = 16,011,614,612.62
  5. Step 5: Solve for x
    x = 16,011,614,612.62/144,141.76
  6. Step 6: Final answer
    x = 111,082.41

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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.