Home / 166,424.14-229,665-90,972.64

Finding the Fourth Proportional to 166,424.14, 229,665 and 90,972.64

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Solution

The fourth proportional to 166,424.14, 229,665 and 90,972.64 is: 125,542.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,424.14 : 229,665 = 90,972.64 : x
  2. Step 2: Convert to fraction form
    166,424.14/229,665 = 90,972.64/x
  3. Step 3: Cross multiply
    166,424.14x = 229,665 × 90,972.64
  4. Step 4: Simplify right side
    166,424.14x = 20,893,231,365.60
  5. Step 5: Solve for x
    x = 20,893,231,365.60/166,424.14
  6. Step 6: Final answer
    x = 125,542.07

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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.