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Finding the Fourth Proportional to 166,785, 230,163.40 and 90,304.76

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Solution

The fourth proportional to 166,785, 230,163.40 and 90,304.76 is: 124,620.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,785 : 230,163.40 = 90,304.76 : x
  2. Step 2: Convert to fraction form
    166,785/230,163.40 = 90,304.76/x
  3. Step 3: Cross multiply
    166,785x = 230,163.40 × 90,304.76
  4. Step 4: Simplify right side
    166,785x = 20,784,850,597.78
  5. Step 5: Solve for x
    x = 20,784,850,597.78/166,785
  6. Step 6: Final answer
    x = 124,620.62

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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.