Home / 121,398.21-167,660.22-92,408.61

Finding the Fourth Proportional to 121,398.21, 167,660.22 and 92,408.61

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Solution

The fourth proportional to 121,398.21, 167,660.22 and 92,408.61 is: 127,623.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,398.21 : 167,660.22 = 92,408.61 : x
  2. Step 2: Convert to fraction form
    121,398.21/167,660.22 = 92,408.61/x
  3. Step 3: Cross multiply
    121,398.21x = 167,660.22 × 92,408.61
  4. Step 4: Simplify right side
    121,398.21x = 15,493,247,882.49
  5. Step 5: Solve for x
    x = 15,493,247,882.49/121,398.21
  6. Step 6: Final answer
    x = 127,623.36

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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.