Home / 143,498.12-198,027.38-79,835.90

Finding the Fourth Proportional to 143,498.12, 198,027.38 and 79,835.90

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Solution

The fourth proportional to 143,498.12, 198,027.38 and 79,835.90 is: 110,173.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,498.12 : 198,027.38 = 79,835.90 : x
  2. Step 2: Convert to fraction form
    143,498.12/198,027.38 = 79,835.90/x
  3. Step 3: Cross multiply
    143,498.12x = 198,027.38 × 79,835.90
  4. Step 4: Simplify right side
    143,498.12x = 15,809,694,106.94
  5. Step 5: Solve for x
    x = 15,809,694,106.94/143,498.12
  6. Step 6: Final answer
    x = 110,173.53

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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.