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Finding the Fourth Proportional to 122,066, 168,441.84 and 74,314.04

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Solution

The fourth proportional to 122,066, 168,441.84 and 74,314.04 is: 102,547.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,066 : 168,441.84 = 74,314.04 : x
  2. Step 2: Convert to fraction form
    122,066/168,441.84 = 74,314.04/x
  3. Step 3: Cross multiply
    122,066x = 168,441.84 × 74,314.04
  4. Step 4: Simplify right side
    122,066x = 12,517,593,635.43
  5. Step 5: Solve for x
    x = 12,517,593,635.43/122,066
  6. Step 6: Final answer
    x = 102,547.75

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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.