Home / 125,311.44-172,892.00-76,863.59

Finding the Fourth Proportional to 125,311.44, 172,892.00 and 76,863.59

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Solution

The fourth proportional to 125,311.44, 172,892.00 and 76,863.59 is: 106,048.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,311.44 : 172,892.00 = 76,863.59 : x
  2. Step 2: Convert to fraction form
    125,311.44/172,892.00 = 76,863.59/x
  3. Step 3: Cross multiply
    125,311.44x = 172,892.00 × 76,863.59
  4. Step 4: Simplify right side
    125,311.44x = 13,289,098,553.50
  5. Step 5: Solve for x
    x = 13,289,098,553.50/125,311.44
  6. Step 6: Final answer
    x = 106,048.57

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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.