Home / 143,796.17-198,438.91-80,132.57

Finding the Fourth Proportional to 143,796.17, 198,438.91 and 80,132.57

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Solution

The fourth proportional to 143,796.17, 198,438.91 and 80,132.57 is: 110,583.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,796.17 : 198,438.91 = 80,132.57 : x
  2. Step 2: Convert to fraction form
    143,796.17/198,438.91 = 80,132.57/x
  3. Step 3: Cross multiply
    143,796.17x = 198,438.91 × 80,132.57
  4. Step 4: Simplify right side
    143,796.17x = 15,901,419,445.64
  5. Step 5: Solve for x
    x = 15,901,419,445.64/143,796.17
  6. Step 6: Final answer
    x = 110,583.05

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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.