Home / 144,197.04-198,989.84-80,535.76

Finding the Fourth Proportional to 144,197.04, 198,989.84 and 80,535.76

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Solution

The fourth proportional to 144,197.04, 198,989.84 and 80,535.76 is: 111,138.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,197.04 : 198,989.84 = 80,535.76 : x
  2. Step 2: Convert to fraction form
    144,197.04/198,989.84 = 80,535.76/x
  3. Step 3: Cross multiply
    144,197.04x = 198,989.84 × 80,535.76
  4. Step 4: Simplify right side
    144,197.04x = 16,025,797,996.68
  5. Step 5: Solve for x
    x = 16,025,797,996.68/144,197.04
  6. Step 6: Final answer
    x = 111,138.19

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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.