Home / 124,793.82-172,215.16-68,205.60

Finding the Fourth Proportional to 124,793.82, 172,215.16 and 68,205.60

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Solution

The fourth proportional to 124,793.82, 172,215.16 and 68,205.60 is: 94,123.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,793.82 : 172,215.16 = 68,205.60 : x
  2. Step 2: Convert to fraction form
    124,793.82/172,215.16 = 68,205.60/x
  3. Step 3: Cross multiply
    124,793.82x = 172,215.16 × 68,205.60
  4. Step 4: Simplify right side
    124,793.82x = 11,746,038,316.90
  5. Step 5: Solve for x
    x = 11,746,038,316.90/124,793.82
  6. Step 6: Final answer
    x = 94,123.56

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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.