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Finding the Fourth Proportional to 143,282.70, 214,925.85 and 43,443.90

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Solution

The fourth proportional to 143,282.70, 214,925.85 and 43,443.90 is: 65,166.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,282.70 : 214,925.85 = 43,443.90 : x
  2. Step 2: Convert to fraction form
    143,282.70/214,925.85 = 43,443.90/x
  3. Step 3: Cross multiply
    143,282.70x = 214,925.85 × 43,443.90
  4. Step 4: Simplify right side
    143,282.70x = 9,337,217,134.82
  5. Step 5: Solve for x
    x = 9,337,217,134.82/143,282.70
  6. Step 6: Final answer
    x = 65,166.40

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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.