Home / 99,516.60-148,946.85-69,992.10

Finding the Fourth Proportional to 99,516.60, 148,946.85 and 69,992.10

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Solution

The fourth proportional to 99,516.60, 148,946.85 and 69,992.10 is: 104,757.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,516.60 : 148,946.85 = 69,992.10 : x
  2. Step 2: Convert to fraction form
    99,516.60/148,946.85 = 69,992.10/x
  3. Step 3: Cross multiply
    99,516.60x = 148,946.85 × 69,992.10
  4. Step 4: Simplify right side
    99,516.60x = 10,425,102,819.89
  5. Step 5: Solve for x
    x = 10,425,102,819.89/99,516.60
  6. Step 6: Final answer
    x = 104,757.43

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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.