Home / 121,344.12-167,415.30-67,618.98

Finding the Fourth Proportional to 121,344.12, 167,415.30 and 67,618.98

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Solution

The fourth proportional to 121,344.12, 167,415.30 and 67,618.98 is: 93,292.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,344.12 : 167,415.30 = 67,618.98 : x
  2. Step 2: Convert to fraction form
    121,344.12/167,415.30 = 67,618.98/x
  3. Step 3: Cross multiply
    121,344.12x = 167,415.30 × 67,618.98
  4. Step 4: Simplify right side
    121,344.12x = 11,320,451,822.39
  5. Step 5: Solve for x
    x = 11,320,451,822.39/121,344.12
  6. Step 6: Final answer
    x = 93,292.13

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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.