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Finding the Fourth Proportional to 121,254.96, 167,323.24 and 66,804.72

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Solution

The fourth proportional to 121,254.96, 167,323.24 and 66,804.72 is: 92,185.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,254.96 : 167,323.24 = 66,804.72 : x
  2. Step 2: Convert to fraction form
    121,254.96/167,323.24 = 66,804.72/x
  3. Step 3: Cross multiply
    121,254.96x = 167,323.24 × 66,804.72
  4. Step 4: Simplify right side
    121,254.96x = 11,177,982,197.69
  5. Step 5: Solve for x
    x = 11,177,982,197.69/121,254.96
  6. Step 6: Final answer
    x = 92,185.77

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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.