Home / 124,992.18-172,489.77-68,403.42

Finding the Fourth Proportional to 124,992.18, 172,489.77 and 68,403.42

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Solution

The fourth proportional to 124,992.18, 172,489.77 and 68,403.42 is: 94,397.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,992.18 : 172,489.77 = 68,403.42 : x
  2. Step 2: Convert to fraction form
    124,992.18/172,489.77 = 68,403.42/x
  3. Step 3: Cross multiply
    124,992.18x = 172,489.77 × 68,403.42
  4. Step 4: Simplify right side
    124,992.18x = 11,798,890,183.01
  5. Step 5: Solve for x
    x = 11,798,890,183.01/124,992.18
  6. Step 6: Final answer
    x = 94,397.03

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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.