Home / 99,912.20-149,795.40-40,717.40

Finding the Fourth Proportional to 99,912.20, 149,795.40 and 40,717.40

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Solution

The fourth proportional to 99,912.20, 149,795.40 and 40,717.40 is: 61,046.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,912.20 : 149,795.40 = 40,717.40 : x
  2. Step 2: Convert to fraction form
    99,912.20/149,795.40 = 40,717.40/x
  3. Step 3: Cross multiply
    99,912.20x = 149,795.40 × 40,717.40
  4. Step 4: Simplify right side
    99,912.20x = 6,099,279,219.96
  5. Step 5: Solve for x
    x = 6,099,279,219.96/99,912.20
  6. Step 6: Final answer
    x = 61,046.39

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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.