Home / 124,764.39-172,179.11-68,179.41

Finding the Fourth Proportional to 124,764.39, 172,179.11 and 68,179.41

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Solution

The fourth proportional to 124,764.39, 172,179.11 and 68,179.41 is: 94,089.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,764.39 : 172,179.11 = 68,179.41 : x
  2. Step 2: Convert to fraction form
    124,764.39/172,179.11 = 68,179.41/x
  3. Step 3: Cross multiply
    124,764.39x = 172,179.11 × 68,179.41
  4. Step 4: Simplify right side
    124,764.39x = 11,739,069,793.23
  5. Step 5: Solve for x
    x = 11,739,069,793.23/124,764.39
  6. Step 6: Final answer
    x = 94,089.91

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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.