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Finding the Fourth Proportional to 166,523.80, 249,785.70 and 54,214.60

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Solution

The fourth proportional to 166,523.80, 249,785.70 and 54,214.60 is: 81,321.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,523.80 : 249,785.70 = 54,214.60 : x
  2. Step 2: Convert to fraction form
    166,523.80/249,785.70 = 54,214.60/x
  3. Step 3: Cross multiply
    166,523.80x = 249,785.70 × 54,214.60
  4. Step 4: Simplify right side
    166,523.80x = 13,542,031,811.22
  5. Step 5: Solve for x
    x = 13,542,031,811.22/166,523.80
  6. Step 6: Final answer
    x = 81,321.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.