Home / 166,678.39-230,021.72-91,226.89

Finding the Fourth Proportional to 166,678.39, 230,021.72 and 91,226.89

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Solution

The fourth proportional to 166,678.39, 230,021.72 and 91,226.89 is: 125,896.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,678.39 : 230,021.72 = 91,226.89 : x
  2. Step 2: Convert to fraction form
    166,678.39/230,021.72 = 91,226.89/x
  3. Step 3: Cross multiply
    166,678.39x = 230,021.72 × 91,226.89
  4. Step 4: Simplify right side
    166,678.39x = 20,984,165,691.92
  5. Step 5: Solve for x
    x = 20,984,165,691.92/166,678.39
  6. Step 6: Final answer
    x = 125,896.14

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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.