Home / 143,540.01-198,062.87-79,877.61

Finding the Fourth Proportional to 143,540.01, 198,062.87 and 79,877.61

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Solution

The fourth proportional to 143,540.01, 198,062.87 and 79,877.61 is: 110,218.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,540.01 : 198,062.87 = 79,877.61 : x
  2. Step 2: Convert to fraction form
    143,540.01/198,062.87 = 79,877.61/x
  3. Step 3: Cross multiply
    143,540.01x = 198,062.87 × 79,877.61
  4. Step 4: Simplify right side
    143,540.01x = 15,820,788,285.95
  5. Step 5: Solve for x
    x = 15,820,788,285.95/143,540.01
  6. Step 6: Final answer
    x = 110,218.67

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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.