Home / 121,610.46-167,811.40-67,885.59

Finding the Fourth Proportional to 121,610.46, 167,811.40 and 67,885.59

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Solution

The fourth proportional to 121,610.46, 167,811.40 and 67,885.59 is: 93,675.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,610.46 : 167,811.40 = 67,885.59 : x
  2. Step 2: Convert to fraction form
    121,610.46/167,811.40 = 67,885.59/x
  3. Step 3: Cross multiply
    121,610.46x = 167,811.40 × 67,885.59
  4. Step 4: Simplify right side
    121,610.46x = 11,391,976,230.02
  5. Step 5: Solve for x
    x = 11,391,976,230.02/121,610.46
  6. Step 6: Final answer
    x = 93,675.95

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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.