Home / 143,659.59-198,264.03-79,997.37

Finding the Fourth Proportional to 143,659.59, 198,264.03 and 79,997.37

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Solution

The fourth proportional to 143,659.59, 198,264.03 and 79,997.37 is: 110,404.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,659.59 : 198,264.03 = 79,997.37 : x
  2. Step 2: Convert to fraction form
    143,659.59/198,264.03 = 79,997.37/x
  3. Step 3: Cross multiply
    143,659.59x = 198,264.03 × 79,997.37
  4. Step 4: Simplify right side
    143,659.59x = 15,860,600,965.60
  5. Step 5: Solve for x
    x = 15,860,600,965.60/143,659.59
  6. Step 6: Final answer
    x = 110,404.05

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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.