Home / 125,107.56-172,650.15-68,519.34

Finding the Fourth Proportional to 125,107.56, 172,650.15 and 68,519.34

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Solution

The fourth proportional to 125,107.56, 172,650.15 and 68,519.34 is: 94,557.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,107.56 : 172,650.15 = 68,519.34 : x
  2. Step 2: Convert to fraction form
    125,107.56/172,650.15 = 68,519.34/x
  3. Step 3: Cross multiply
    125,107.56x = 172,650.15 × 68,519.34
  4. Step 4: Simplify right side
    125,107.56x = 11,829,874,328.90
  5. Step 5: Solve for x
    x = 11,829,874,328.90/125,107.56
  6. Step 6: Final answer
    x = 94,557.63

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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.