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Finding the Fourth Proportional to 168,805.89, 232,842.16 and 108,280.67

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Solution

The fourth proportional to 168,805.89, 232,842.16 and 108,280.67 is: 149,356.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,805.89 : 232,842.16 = 108,280.67 : x
  2. Step 2: Convert to fraction form
    168,805.89/232,842.16 = 108,280.67/x
  3. Step 3: Cross multiply
    168,805.89x = 232,842.16 × 108,280.67
  4. Step 4: Simplify right side
    168,805.89x = 25,212,304,060.19
  5. Step 5: Solve for x
    x = 25,212,304,060.19/168,805.89
  6. Step 6: Final answer
    x = 149,356.78

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1.5x scale

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.