Home / 124,739,040.12-172,141,017.66-68,981,579.61

Finding the Fourth Proportional to 124,739,040.12, 172,141,017.66 and 68,981,579.61

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Solution

The fourth proportional to 124,739,040.12, 172,141,017.66 and 68,981,579.61 is: 95,195,211.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,739,040.12 : 172,141,017.66 = 68,981,579.61 : x
  2. Step 2: Convert to fraction form
    124,739,040.12/172,141,017.66 = 68,981,579.61/x
  3. Step 3: Cross multiply
    124,739,040.12x = 172,141,017.66 × 68,981,579.61
  4. Step 4: Simplify right side
    124,739,040.12x = 11,874,559,313,859,706
  5. Step 5: Solve for x
    x = 11,874,559,313,859,706/124,739,040.12
  6. Step 6: Final answer
    x = 95,195,211.56

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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.