Home / 124,823.10-172,255.87-68,234.48

Finding the Fourth Proportional to 124,823.10, 172,255.87 and 68,234.48

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Solution

The fourth proportional to 124,823.10, 172,255.87 and 68,234.48 is: 94,163.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,823.10 : 172,255.87 = 68,234.48 : x
  2. Step 2: Convert to fraction form
    124,823.10/172,255.87 = 68,234.48/x
  3. Step 3: Cross multiply
    124,823.10x = 172,255.87 × 68,234.48
  4. Step 4: Simplify right side
    124,823.10x = 11,753,788,513.95
  5. Step 5: Solve for x
    x = 11,753,788,513.95/124,823.10
  6. Step 6: Final answer
    x = 94,163.57

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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.