Home / 124,859,085.54-172,305,906.69-69,108,378.15

Finding the Fourth Proportional to 124,859,085.54, 172,305,906.69 and 69,108,378.15

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Solution

The fourth proportional to 124,859,085.54, 172,305,906.69 and 69,108,378.15 is: 95,369,765.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,859,085.54 : 172,305,906.69 = 69,108,378.15 : x
  2. Step 2: Convert to fraction form
    124,859,085.54/172,305,906.69 = 69,108,378.15/x
  3. Step 3: Cross multiply
    124,859,085.54x = 172,305,906.69 × 69,108,378.15
  4. Step 4: Simplify right side
    124,859,085.54x = 11,907,781,757,721,554
  5. Step 5: Solve for x
    x = 11,907,781,757,721,554/124,859,085.54
  6. Step 6: Final answer
    x = 95,369,765.89

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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.