Home / 121,897.46-168,217.29-68,181.86

Finding the Fourth Proportional to 121,897.46, 168,217.29 and 68,181.86

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Solution

The fourth proportional to 121,897.46, 168,217.29 and 68,181.86 is: 94,090.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,897.46 : 168,217.29 = 68,181.86 : x
  2. Step 2: Convert to fraction form
    121,897.46/168,217.29 = 68,181.86/x
  3. Step 3: Cross multiply
    121,897.46x = 168,217.29 × 68,181.86
  4. Step 4: Simplify right side
    121,897.46x = 11,469,367,716.36
  5. Step 5: Solve for x
    x = 11,469,367,716.36/121,897.46
  6. Step 6: Final answer
    x = 94,090.29

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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.