Home / 144,120.32-198,877.78-80,462.16

Finding the Fourth Proportional to 144,120.32, 198,877.78 and 80,462.16

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Solution

The fourth proportional to 144,120.32, 198,877.78 and 80,462.16 is: 111,033.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,120.32 : 198,877.78 = 80,462.16 : x
  2. Step 2: Convert to fraction form
    144,120.32/198,877.78 = 80,462.16/x
  3. Step 3: Cross multiply
    144,120.32x = 198,877.78 × 80,462.16
  4. Step 4: Simplify right side
    144,120.32x = 16,002,135,754.80
  5. Step 5: Solve for x
    x = 16,002,135,754.80/144,120.32
  6. Step 6: Final answer
    x = 111,033.17

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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.