Home / 143,862.30-215,611.20-54,997.20

Finding the Fourth Proportional to 143,862.30, 215,611.20 and 54,997.20

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Solution

The fourth proportional to 143,862.30, 215,611.20 and 54,997.20 is: 82,426.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,862.30 : 215,611.20 = 54,997.20 : x
  2. Step 2: Convert to fraction form
    143,862.30/215,611.20 = 54,997.20/x
  3. Step 3: Cross multiply
    143,862.30x = 215,611.20 × 54,997.20
  4. Step 4: Simplify right side
    143,862.30x = 11,858,012,288.64
  5. Step 5: Solve for x
    x = 11,858,012,288.64/143,862.30
  6. Step 6: Final answer
    x = 82,426.13

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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.