Home / 143,942.88-215,913.98-38,761.94

Finding the Fourth Proportional to 143,942.88, 215,913.98 and 38,761.94

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Solution

The fourth proportional to 143,942.88, 215,913.98 and 38,761.94 is: 58,142.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,942.88 : 215,913.98 = 38,761.94 : x
  2. Step 2: Convert to fraction form
    143,942.88/215,913.98 = 38,761.94/x
  3. Step 3: Cross multiply
    143,942.88x = 215,913.98 × 38,761.94
  4. Step 4: Simplify right side
    143,942.88x = 8,369,244,737.92
  5. Step 5: Solve for x
    x = 8,369,244,737.92/143,942.88
  6. Step 6: Final answer
    x = 58,142.82

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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.