Home / 121,611.26-167,820.28-67,894.76

Finding the Fourth Proportional to 121,611.26, 167,820.28 and 67,894.76

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Solution

The fourth proportional to 121,611.26, 167,820.28 and 67,894.76 is: 93,692.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,611.26 : 167,820.28 = 67,894.76 : x
  2. Step 2: Convert to fraction form
    121,611.26/167,820.28 = 67,894.76/x
  3. Step 3: Cross multiply
    121,611.26x = 167,820.28 × 67,894.76
  4. Step 4: Simplify right side
    121,611.26x = 11,394,117,633.73
  5. Step 5: Solve for x
    x = 11,394,117,633.73/121,611.26
  6. Step 6: Final answer
    x = 93,692.95

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1.5x scale

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.