Home / 166,204.20-249,136.20-81,834.60

Finding the Fourth Proportional to 166,204.20, 249,136.20 and 81,834.60

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Solution

The fourth proportional to 166,204.20, 249,136.20 and 81,834.60 is: 122,668.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,204.20 : 249,136.20 = 81,834.60 : x
  2. Step 2: Convert to fraction form
    166,204.20/249,136.20 = 81,834.60/x
  3. Step 3: Cross multiply
    166,204.20x = 249,136.20 × 81,834.60
  4. Step 4: Simplify right side
    166,204.20x = 20,387,961,272.52
  5. Step 5: Solve for x
    x = 20,387,961,272.52/166,204.20
  6. Step 6: Final answer
    x = 122,668.15

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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.