Home / 148,358.45-204,735.09-80,375.12

Finding the Fourth Proportional to 148,358.45, 204,735.09 and 80,375.12

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Solution

The fourth proportional to 148,358.45, 204,735.09 and 80,375.12 is: 110,917.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,358.45 : 204,735.09 = 80,375.12 : x
  2. Step 2: Convert to fraction form
    148,358.45/204,735.09 = 80,375.12/x
  3. Step 3: Cross multiply
    148,358.45x = 204,735.09 × 80,375.12
  4. Step 4: Simplify right side
    148,358.45x = 16,455,607,426.96
  5. Step 5: Solve for x
    x = 16,455,607,426.96/148,358.45
  6. Step 6: Final answer
    x = 110,917.90

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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.