Home / 143,868.14-198,546.72-80,205.74

Finding the Fourth Proportional to 143,868.14, 198,546.72 and 80,205.74

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Solution

The fourth proportional to 143,868.14, 198,546.72 and 80,205.74 is: 110,688.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,868.14 : 198,546.72 = 80,205.74 : x
  2. Step 2: Convert to fraction form
    143,868.14/198,546.72 = 80,205.74/x
  3. Step 3: Cross multiply
    143,868.14x = 198,546.72 × 80,205.74
  4. Step 4: Simplify right side
    143,868.14x = 15,924,586,602.17
  5. Step 5: Solve for x
    x = 15,924,586,602.17/143,868.14
  6. Step 6: Final answer
    x = 110,688.76

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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.