Home / 143,885.40-198,562.08-80,227.23

Finding the Fourth Proportional to 143,885.40, 198,562.08 and 80,227.23

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Solution

The fourth proportional to 143,885.40, 198,562.08 and 80,227.23 is: 110,713.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,885.40 : 198,562.08 = 80,227.23 : x
  2. Step 2: Convert to fraction form
    143,885.40/198,562.08 = 80,227.23/x
  3. Step 3: Cross multiply
    143,885.40x = 198,562.08 × 80,227.23
  4. Step 4: Simplify right side
    143,885.40x = 15,930,085,661.44
  5. Step 5: Solve for x
    x = 15,930,085,661.44/143,885.40
  6. Step 6: Final answer
    x = 110,713.70

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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.