Home / 121,150.82-167,188.12-67,434.68

Finding the Fourth Proportional to 121,150.82, 167,188.12 and 67,434.68

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Solution

The fourth proportional to 121,150.82, 167,188.12 and 67,434.68 is: 93,059.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,150.82 : 167,188.12 = 67,434.68 : x
  2. Step 2: Convert to fraction form
    121,150.82/167,188.12 = 67,434.68/x
  3. Step 3: Cross multiply
    121,150.82x = 167,188.12 × 67,434.68
  4. Step 4: Simplify right side
    121,150.82x = 11,274,277,372.00
  5. Step 5: Solve for x
    x = 11,274,277,372.00/121,150.82
  6. Step 6: Final answer
    x = 93,059.85

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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.