Home / 143,996.80-198,711.75-80,332.96

Finding the Fourth Proportional to 143,996.80, 198,711.75 and 80,332.96

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Solution

The fourth proportional to 143,996.80, 198,711.75 and 80,332.96 is: 110,857.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,996.80 : 198,711.75 = 80,332.96 : x
  2. Step 2: Convert to fraction form
    143,996.80/198,711.75 = 80,332.96/x
  3. Step 3: Cross multiply
    143,996.80x = 198,711.75 × 80,332.96
  4. Step 4: Simplify right side
    143,996.80x = 15,963,103,064.28
  5. Step 5: Solve for x
    x = 15,963,103,064.28/143,996.80
  6. Step 6: Final answer
    x = 110,857.35

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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.