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Finding the Fourth Proportional to 121,553.61, 167,739.57 and 67,104.60

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Solution

The fourth proportional to 121,553.61, 167,739.57 and 67,104.60 is: 92,601.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,553.61 : 167,739.57 = 67,104.60 : x
  2. Step 2: Convert to fraction form
    121,553.61/167,739.57 = 67,104.60/x
  3. Step 3: Cross multiply
    121,553.61x = 167,739.57 × 67,104.60
  4. Step 4: Simplify right side
    121,553.61x = 11,256,096,749.02
  5. Step 5: Solve for x
    x = 11,256,096,749.02/121,553.61
  6. Step 6: Final answer
    x = 92,601.91

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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.