Home / 121,857,040.62-168,162,703.74-68,932,617.48

Finding the Fourth Proportional to 121,857,040.62, 168,162,703.74 and 68,932,617.48

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Solution

The fourth proportional to 121,857,040.62, 168,162,703.74 and 68,932,617.48 is: 95,127,005.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,857,040.62 : 168,162,703.74 = 68,932,617.48 : x
  2. Step 2: Convert to fraction form
    121,857,040.62/168,162,703.74 = 68,932,617.48/x
  3. Step 3: Cross multiply
    121,857,040.62x = 168,162,703.74 × 68,932,617.48
  4. Step 4: Simplify right side
    121,857,040.62x = 11,591,895,331,311,986
  5. Step 5: Solve for x
    x = 11,591,895,331,311,986/121,857,040.62
  6. Step 6: Final answer
    x = 95,127,005.16

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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.