Home / 143,918.57-215,879.18-55,150.88

Finding the Fourth Proportional to 143,918.57, 215,879.18 and 55,150.88

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Solution

The fourth proportional to 143,918.57, 215,879.18 and 55,150.88 is: 82,726.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,918.57 : 215,879.18 = 55,150.88 : x
  2. Step 2: Convert to fraction form
    143,918.57/215,879.18 = 55,150.88/x
  3. Step 3: Cross multiply
    143,918.57x = 215,879.18 × 55,150.88
  4. Step 4: Simplify right side
    143,918.57x = 11,905,925,395.53
  5. Step 5: Solve for x
    x = 11,905,925,395.53/143,918.57
  6. Step 6: Final answer
    x = 82,726.82

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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.