Home / 144,008.28-198,731.48-80,344.71

Finding the Fourth Proportional to 144,008.28, 198,731.48 and 80,344.71

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Solution

The fourth proportional to 144,008.28, 198,731.48 and 80,344.71 is: 110,875.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,008.28 : 198,731.48 = 80,344.71 : x
  2. Step 2: Convert to fraction form
    144,008.28/198,731.48 = 80,344.71/x
  3. Step 3: Cross multiply
    144,008.28x = 198,731.48 × 80,344.71
  4. Step 4: Simplify right side
    144,008.28x = 15,967,022,726.75
  5. Step 5: Solve for x
    x = 15,967,022,726.75/144,008.28
  6. Step 6: Final answer
    x = 110,875.73

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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.