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Finding the Fourth Proportional to 168,531.12, 232,571.52 and 93,078

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Solution

The fourth proportional to 168,531.12, 232,571.52 and 93,078 is: 128,446.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,531.12 : 232,571.52 = 93,078 : x
  2. Step 2: Convert to fraction form
    168,531.12/232,571.52 = 93,078/x
  3. Step 3: Cross multiply
    168,531.12x = 232,571.52 × 93,078
  4. Step 4: Simplify right side
    168,531.12x = 21,647,291,938.56
  5. Step 5: Solve for x
    x = 21,647,291,938.56/168,531.12
  6. Step 6: Final answer
    x = 128,446.85

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.