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Finding the Fourth Proportional to 121,044, 167,040.72 and 68,052

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Solution

The fourth proportional to 121,044, 167,040.72 and 68,052 is: 93,911.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,044 : 167,040.72 = 68,052 : x
  2. Step 2: Convert to fraction form
    121,044/167,040.72 = 68,052/x
  3. Step 3: Cross multiply
    121,044x = 167,040.72 × 68,052
  4. Step 4: Simplify right side
    121,044x = 11,367,455,077.44
  5. Step 5: Solve for x
    x = 11,367,455,077.44/121,044
  6. Step 6: Final answer
    x = 93,911.76

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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.