Home / 144,137.88-198,908.46-80,476.20

Finding the Fourth Proportional to 144,137.88, 198,908.46 and 80,476.20

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Solution

The fourth proportional to 144,137.88, 198,908.46 and 80,476.20 is: 111,056.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,137.88 : 198,908.46 = 80,476.20 : x
  2. Step 2: Convert to fraction form
    144,137.88/198,908.46 = 80,476.20/x
  3. Step 3: Cross multiply
    144,137.88x = 198,908.46 × 80,476.20
  4. Step 4: Simplify right side
    144,137.88x = 16,007,397,008.65
  5. Step 5: Solve for x
    x = 16,007,397,008.65/144,137.88
  6. Step 6: Final answer
    x = 111,056.14

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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.