Home / 124,782.57-172,211.82-68,202.45

Finding the Fourth Proportional to 124,782.57, 172,211.82 and 68,202.45

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Solution

The fourth proportional to 124,782.57, 172,211.82 and 68,202.45 is: 94,125.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,782.57 : 172,211.82 = 68,202.45 : x
  2. Step 2: Convert to fraction form
    124,782.57/172,211.82 = 68,202.45/x
  3. Step 3: Cross multiply
    124,782.57x = 172,211.82 × 68,202.45
  4. Step 4: Simplify right side
    124,782.57x = 11,745,268,042.96
  5. Step 5: Solve for x
    x = 11,745,268,042.96/124,782.57
  6. Step 6: Final answer
    x = 94,125.87

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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.