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Finding the Fourth Proportional to 122,466.47, 169,022.30 and 74,747.54

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Solution

The fourth proportional to 122,466.47, 169,022.30 and 74,747.54 is: 103,162.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,466.47 : 169,022.30 = 74,747.54 : x
  2. Step 2: Convert to fraction form
    122,466.47/169,022.30 = 74,747.54/x
  3. Step 3: Cross multiply
    122,466.47x = 169,022.30 × 74,747.54
  4. Step 4: Simplify right side
    122,466.47x = 12,634,001,178.96
  5. Step 5: Solve for x
    x = 12,634,001,178.96/122,466.47
  6. Step 6: Final answer
    x = 103,162.94

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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.