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Finding the Fourth Proportional to 168,669, 232,740.68 and 108,321.38

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Solution

The fourth proportional to 168,669, 232,740.68 and 108,321.38 is: 149,469.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,669 : 232,740.68 = 108,321.38 : x
  2. Step 2: Convert to fraction form
    168,669/232,740.68 = 108,321.38/x
  3. Step 3: Cross multiply
    168,669x = 232,740.68 × 108,321.38
  4. Step 4: Simplify right side
    168,669x = 25,210,791,639.74
  5. Step 5: Solve for x
    x = 25,210,791,639.74/168,669
  6. Step 6: Final answer
    x = 149,469.03

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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.