Home / 99,949.48-149,902.18-28,856.66

Finding the Fourth Proportional to 99,949.48, 149,902.18 and 28,856.66

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Solution

The fourth proportional to 99,949.48, 149,902.18 and 28,856.66 is: 43,278.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,949.48 : 149,902.18 = 28,856.66 : x
  2. Step 2: Convert to fraction form
    99,949.48/149,902.18 = 28,856.66/x
  3. Step 3: Cross multiply
    99,949.48x = 149,902.18 × 28,856.66
  4. Step 4: Simplify right side
    99,949.48x = 4,325,675,419.87
  5. Step 5: Solve for x
    x = 4,325,675,419.87/99,949.48
  6. Step 6: Final answer
    x = 43,278.62

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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.