Home / 124,694.20-171,900.12-76,915.54

Finding the Fourth Proportional to 124,694.20, 171,900.12 and 76,915.54

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Solution

The fourth proportional to 124,694.20, 171,900.12 and 76,915.54 is: 106,033.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,694.20 : 171,900.12 = 76,915.54 : x
  2. Step 2: Convert to fraction form
    124,694.20/171,900.12 = 76,915.54/x
  3. Step 3: Cross multiply
    124,694.20x = 171,900.12 × 76,915.54
  4. Step 4: Simplify right side
    124,694.20x = 13,221,790,555.86
  5. Step 5: Solve for x
    x = 13,221,790,555.86/124,694.20
  6. Step 6: Final answer
    x = 106,033.73

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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.