Home / 124,749.01-172,229.91-81,183.07

Finding the Fourth Proportional to 124,749.01, 172,229.91 and 81,183.07

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Solution

The fourth proportional to 124,749.01, 172,229.91 and 81,183.07 is: 112,082.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,749.01 : 172,229.91 = 81,183.07 : x
  2. Step 2: Convert to fraction form
    124,749.01/172,229.91 = 81,183.07/x
  3. Step 3: Cross multiply
    124,749.01x = 172,229.91 × 81,183.07
  4. Step 4: Simplify right side
    124,749.01x = 13,982,152,839.62
  5. Step 5: Solve for x
    x = 13,982,152,839.62/124,749.01
  6. Step 6: Final answer
    x = 112,082.27

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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.