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Finding the Fourth Proportional to 148,196.60, 204,509.70 and 80,212.20

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Solution

The fourth proportional to 148,196.60, 204,509.70 and 80,212.20 is: 110,691.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,196.60 : 204,509.70 = 80,212.20 : x
  2. Step 2: Convert to fraction form
    148,196.60/204,509.70 = 80,212.20/x
  3. Step 3: Cross multiply
    148,196.60x = 204,509.70 × 80,212.20
  4. Step 4: Simplify right side
    148,196.60x = 16,404,172,958.34
  5. Step 5: Solve for x
    x = 16,404,172,958.34/148,196.60
  6. Step 6: Final answer
    x = 110,691.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.