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Finding the Fourth Proportional to 143,658.80, 215,500.68 and 43,841.48

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Solution

The fourth proportional to 143,658.80, 215,500.68 and 43,841.48 is: 65,766.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,658.80 : 215,500.68 = 43,841.48 : x
  2. Step 2: Convert to fraction form
    143,658.80/215,500.68 = 43,841.48/x
  3. Step 3: Cross multiply
    143,658.80x = 215,500.68 × 43,841.48
  4. Step 4: Simplify right side
    143,658.80x = 9,447,868,752.21
  5. Step 5: Solve for x
    x = 9,447,868,752.21/143,658.80
  6. Step 6: Final answer
    x = 65,766.03

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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.