Home / 124,791.32-172,211.72-68,203.10

Finding the Fourth Proportional to 124,791.32, 172,211.72 and 68,203.10

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Solution

The fourth proportional to 124,791.32, 172,211.72 and 68,203.10 is: 94,120.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,791.32 : 172,211.72 = 68,203.10 : x
  2. Step 2: Convert to fraction form
    124,791.32/172,211.72 = 68,203.10/x
  3. Step 3: Cross multiply
    124,791.32x = 172,211.72 × 68,203.10
  4. Step 4: Simplify right side
    124,791.32x = 11,745,373,160.33
  5. Step 5: Solve for x
    x = 11,745,373,160.33/124,791.32
  6. Step 6: Final answer
    x = 94,120.11

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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.