Home / 144,120.36-198,877.80-80,462.20

Finding the Fourth Proportional to 144,120.36, 198,877.80 and 80,462.20

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Solution

The fourth proportional to 144,120.36, 198,877.80 and 80,462.20 is: 111,033.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,120.36 : 198,877.80 = 80,462.20 : x
  2. Step 2: Convert to fraction form
    144,120.36/198,877.80 = 80,462.20/x
  3. Step 3: Cross multiply
    144,120.36x = 198,877.80 × 80,462.20
  4. Step 4: Simplify right side
    144,120.36x = 16,002,145,319.16
  5. Step 5: Solve for x
    x = 16,002,145,319.16/144,120.36
  6. Step 6: Final answer
    x = 111,033.20

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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.