Home / 88,156.20-131,942.70-61,912.20

Finding the Fourth Proportional to 88,156.20, 131,942.70 and 61,912.20

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Solution

The fourth proportional to 88,156.20, 131,942.70 and 61,912.20 is: 92,663.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,156.20 : 131,942.70 = 61,912.20 : x
  2. Step 2: Convert to fraction form
    88,156.20/131,942.70 = 61,912.20/x
  3. Step 3: Cross multiply
    88,156.20x = 131,942.70 × 61,912.20
  4. Step 4: Simplify right side
    88,156.20x = 8,168,862,830.94
  5. Step 5: Solve for x
    x = 8,168,862,830.94/88,156.20
  6. Step 6: Final answer
    x = 92,663.51

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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.