Home / 142,884.28-197,179.34-79,222.04

Finding the Fourth Proportional to 142,884.28, 197,179.34 and 79,222.04

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Solution

The fourth proportional to 142,884.28, 197,179.34 and 79,222.04 is: 109,325.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,884.28 : 197,179.34 = 79,222.04 : x
  2. Step 2: Convert to fraction form
    142,884.28/197,179.34 = 79,222.04/x
  3. Step 3: Cross multiply
    142,884.28x = 197,179.34 × 79,222.04
  4. Step 4: Simplify right side
    142,884.28x = 15,620,949,560.65
  5. Step 5: Solve for x
    x = 15,620,949,560.65/142,884.28
  6. Step 6: Final answer
    x = 109,325.88

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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.