Home / 143,773.88-198,405.28-80,110.32

Finding the Fourth Proportional to 143,773.88, 198,405.28 and 80,110.32

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Solution

The fourth proportional to 143,773.88, 198,405.28 and 80,110.32 is: 110,550.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,773.88 : 198,405.28 = 80,110.32 : x
  2. Step 2: Convert to fraction form
    143,773.88/198,405.28 = 80,110.32/x
  3. Step 3: Cross multiply
    143,773.88x = 198,405.28 × 80,110.32
  4. Step 4: Simplify right side
    143,773.88x = 15,894,310,470.49
  5. Step 5: Solve for x
    x = 15,894,310,470.49/143,773.88
  6. Step 6: Final answer
    x = 110,550.75

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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.