Home / 143,546.76-198,072.18-79,884.36

Finding the Fourth Proportional to 143,546.76, 198,072.18 and 79,884.36

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Solution

The fourth proportional to 143,546.76, 198,072.18 and 79,884.36 is: 110,227.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,546.76 : 198,072.18 = 79,884.36 : x
  2. Step 2: Convert to fraction form
    143,546.76/198,072.18 = 79,884.36/x
  3. Step 3: Cross multiply
    143,546.76x = 198,072.18 × 79,884.36
  4. Step 4: Simplify right side
    143,546.76x = 15,822,869,333.10
  5. Step 5: Solve for x
    x = 15,822,869,333.10/143,546.76
  6. Step 6: Final answer
    x = 110,227.98

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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.