Home / 166,321.90-249,519.30-82,122.40

Finding the Fourth Proportional to 166,321.90, 249,519.30 and 82,122.40

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Solution

The fourth proportional to 166,321.90, 249,519.30 and 82,122.40 is: 123,201.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,321.90 : 249,519.30 = 82,122.40 : x
  2. Step 2: Convert to fraction form
    166,321.90/249,519.30 = 82,122.40/x
  3. Step 3: Cross multiply
    166,321.90x = 249,519.30 × 82,122.40
  4. Step 4: Simplify right side
    166,321.90x = 20,491,123,762.32
  5. Step 5: Solve for x
    x = 20,491,123,762.32/166,321.90
  6. Step 6: Final answer
    x = 123,201.60

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Why These Related Problems?

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