Home / 148,742.45-205,263.92-80,758.86

Finding the Fourth Proportional to 148,742.45, 205,263.92 and 80,758.86

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Solution

The fourth proportional to 148,742.45, 205,263.92 and 80,758.86 is: 111,446.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,742.45 : 205,263.92 = 80,758.86 : x
  2. Step 2: Convert to fraction form
    148,742.45/205,263.92 = 80,758.86/x
  3. Step 3: Cross multiply
    148,742.45x = 205,263.92 × 80,758.86
  4. Step 4: Simplify right side
    148,742.45x = 16,576,879,774.54
  5. Step 5: Solve for x
    x = 16,576,879,774.54/148,742.45
  6. Step 6: Final answer
    x = 111,446.87

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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.