Home / 121,857,156.31-168,162,863.22-68,932,733.27

Finding the Fourth Proportional to 121,857,156.31, 168,162,863.22 and 68,932,733.27

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Solution

The fourth proportional to 121,857,156.31, 168,162,863.22 and 68,932,733.27 is: 95,127,164.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,857,156.31 : 168,162,863.22 = 68,932,733.27 : x
  2. Step 2: Convert to fraction form
    121,857,156.31/168,162,863.22 = 68,932,733.27/x
  3. Step 3: Cross multiply
    121,857,156.31x = 168,162,863.22 × 68,932,733.27
  4. Step 4: Simplify right side
    121,857,156.31x = 11,591,925,795,919,090
  5. Step 5: Solve for x
    x = 11,591,925,795,919,090/121,857,156.31
  6. Step 6: Final answer
    x = 95,127,164.85

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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.