Home / 84,107.27-126,158.16-34,172.60

Finding the Fourth Proportional to 84,107.27, 126,158.16 and 34,172.60

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Solution

The fourth proportional to 84,107.27, 126,158.16 and 34,172.60 is: 51,257.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,107.27 : 126,158.16 = 34,172.60 : x
  2. Step 2: Convert to fraction form
    84,107.27/126,158.16 = 34,172.60/x
  3. Step 3: Cross multiply
    84,107.27x = 126,158.16 × 34,172.60
  4. Step 4: Simplify right side
    84,107.27x = 4,311,152,338.42
  5. Step 5: Solve for x
    x = 4,311,152,338.42/84,107.27
  6. Step 6: Final answer
    x = 51,257.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.