Home / 148,716.10-205,228.38-80,733.04

Finding the Fourth Proportional to 148,716.10, 205,228.38 and 80,733.04

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Solution

The fourth proportional to 148,716.10, 205,228.38 and 80,733.04 is: 111,411.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,716.10 : 205,228.38 = 80,733.04 : x
  2. Step 2: Convert to fraction form
    148,716.10/205,228.38 = 80,733.04/x
  3. Step 3: Cross multiply
    148,716.10x = 205,228.38 × 80,733.04
  4. Step 4: Simplify right side
    148,716.10x = 16,568,711,011.68
  5. Step 5: Solve for x
    x = 16,568,711,011.68/148,716.10
  6. Step 6: Final answer
    x = 111,411.68

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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.