Home / 143,994.30-215,888.97-55,172.70

Finding the Fourth Proportional to 143,994.30, 215,888.97 and 55,172.70

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Solution

The fourth proportional to 143,994.30, 215,888.97 and 55,172.70 is: 82,719.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,994.30 : 215,888.97 = 55,172.70 : x
  2. Step 2: Convert to fraction form
    143,994.30/215,888.97 = 55,172.70/x
  3. Step 3: Cross multiply
    143,994.30x = 215,888.97 × 55,172.70
  4. Step 4: Simplify right side
    143,994.30x = 11,911,177,375.12
  5. Step 5: Solve for x
    x = 11,911,177,375.12/143,994.30
  6. Step 6: Final answer
    x = 82,719.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.