Home / 143,926.82-215,890.04-38,745.90

Finding the Fourth Proportional to 143,926.82, 215,890.04 and 38,745.90

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Solution

The fourth proportional to 143,926.82, 215,890.04 and 38,745.90 is: 58,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,926.82 : 215,890.04 = 38,745.90 : x
  2. Step 2: Convert to fraction form
    143,926.82/215,890.04 = 38,745.90/x
  3. Step 3: Cross multiply
    143,926.82x = 215,890.04 × 38,745.90
  4. Step 4: Simplify right side
    143,926.82x = 8,364,853,900.84
  5. Step 5: Solve for x
    x = 8,364,853,900.84/143,926.82
  6. Step 6: Final answer
    x = 58,118.80

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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.