Home / 124,945.20-172,424.16-68,356.44

Finding the Fourth Proportional to 124,945.20, 172,424.16 and 68,356.44

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Solution

The fourth proportional to 124,945.20, 172,424.16 and 68,356.44 is: 94,331.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,945.20 : 172,424.16 = 68,356.44 : x
  2. Step 2: Convert to fraction form
    124,945.20/172,424.16 = 68,356.44/x
  3. Step 3: Cross multiply
    124,945.20x = 172,424.16 × 68,356.44
  4. Step 4: Simplify right side
    124,945.20x = 11,786,301,747.59
  5. Step 5: Solve for x
    x = 11,786,301,747.59/124,945.20
  6. Step 6: Final answer
    x = 94,331.77

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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.