Home / 143,823.66-215,596.17-55,008.78

Finding the Fourth Proportional to 143,823.66, 215,596.17 and 55,008.78

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Solution

The fourth proportional to 143,823.66, 215,596.17 and 55,008.78 is: 82,459.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,823.66 : 215,596.17 = 55,008.78 : x
  2. Step 2: Convert to fraction form
    143,823.66/215,596.17 = 55,008.78/x
  3. Step 3: Cross multiply
    143,823.66x = 215,596.17 × 55,008.78
  4. Step 4: Simplify right side
    143,823.66x = 11,859,682,284.37
  5. Step 5: Solve for x
    x = 11,859,682,284.37/143,823.66
  6. Step 6: Final answer
    x = 82,459.88

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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.