Home / 99,819.60-149,604.81-49,913.97

Finding the Fourth Proportional to 99,819.60, 149,604.81 and 49,913.97

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Solution

The fourth proportional to 99,819.60, 149,604.81 and 49,913.97 is: 74,808.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,819.60 : 149,604.81 = 49,913.97 : x
  2. Step 2: Convert to fraction form
    99,819.60/149,604.81 = 49,913.97/x
  3. Step 3: Cross multiply
    99,819.60x = 149,604.81 × 49,913.97
  4. Step 4: Simplify right side
    99,819.60x = 7,467,369,998.20
  5. Step 5: Solve for x
    x = 7,467,369,998.20/99,819.60
  6. Step 6: Final answer
    x = 74,808.65

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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.