Home / 125,105.56-172,647.39-68,517.34

Finding the Fourth Proportional to 125,105.56, 172,647.39 and 68,517.34

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Solution

The fourth proportional to 125,105.56, 172,647.39 and 68,517.34 is: 94,554.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,105.56 : 172,647.39 = 68,517.34 : x
  2. Step 2: Convert to fraction form
    125,105.56/172,647.39 = 68,517.34/x
  3. Step 3: Cross multiply
    125,105.56x = 172,647.39 × 68,517.34
  4. Step 4: Simplify right side
    125,105.56x = 11,829,339,920.74
  5. Step 5: Solve for x
    x = 11,829,339,920.74/125,105.56
  6. Step 6: Final answer
    x = 94,554.87

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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.