Home / 143,766.56-198,393.27-90,080.57

Finding the Fourth Proportional to 143,766.56, 198,393.27 and 90,080.57

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Solution

The fourth proportional to 143,766.56, 198,393.27 and 90,080.57 is: 124,308.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,766.56 : 198,393.27 = 90,080.57 : x
  2. Step 2: Convert to fraction form
    143,766.56/198,393.27 = 90,080.57/x
  3. Step 3: Cross multiply
    143,766.56x = 198,393.27 × 90,080.57
  4. Step 4: Simplify right side
    143,766.56x = 17,871,377,853.80
  5. Step 5: Solve for x
    x = 17,871,377,853.80/143,766.56
  6. Step 6: Final answer
    x = 124,308.31

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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.