Home / 143,899.26-198,587.15-80,237.07

Finding the Fourth Proportional to 143,899.26, 198,587.15 and 80,237.07

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Solution

The fourth proportional to 143,899.26, 198,587.15 and 80,237.07 is: 110,730.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,899.26 : 198,587.15 = 80,237.07 : x
  2. Step 2: Convert to fraction form
    143,899.26/198,587.15 = 80,237.07/x
  3. Step 3: Cross multiply
    143,899.26x = 198,587.15 × 80,237.07
  4. Step 4: Simplify right side
    143,899.26x = 15,934,050,654.47
  5. Step 5: Solve for x
    x = 15,934,050,654.47/143,899.26
  6. Step 6: Final answer
    x = 110,730.59

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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.