Home / 143,858.64-198,531.66-80,196.90

Finding the Fourth Proportional to 143,858.64, 198,531.66 and 80,196.90

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Solution

The fourth proportional to 143,858.64, 198,531.66 and 80,196.90 is: 110,675.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,858.64 : 198,531.66 = 80,196.90 : x
  2. Step 2: Convert to fraction form
    143,858.64/198,531.66 = 80,196.90/x
  3. Step 3: Cross multiply
    143,858.64x = 198,531.66 × 80,196.90
  4. Step 4: Simplify right side
    143,858.64x = 15,921,623,683.85
  5. Step 5: Solve for x
    x = 15,921,623,683.85/143,858.64
  6. Step 6: Final answer
    x = 110,675.48

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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.