Home / 124,990.56-172,487.04-68,401.92

Finding the Fourth Proportional to 124,990.56, 172,487.04 and 68,401.92

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Solution

The fourth proportional to 124,990.56, 172,487.04 and 68,401.92 is: 94,394.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,990.56 : 172,487.04 = 68,401.92 : x
  2. Step 2: Convert to fraction form
    124,990.56/172,487.04 = 68,401.92/x
  3. Step 3: Cross multiply
    124,990.56x = 172,487.04 × 68,401.92
  4. Step 4: Simplify right side
    124,990.56x = 11,798,444,711.12
  5. Step 5: Solve for x
    x = 11,798,444,711.12/124,990.56
  6. Step 6: Final answer
    x = 94,394.69

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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.