Home / 166,640.40-249,997.05-82,440.90

Finding the Fourth Proportional to 166,640.40, 249,997.05 and 82,440.90

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Solution

The fourth proportional to 166,640.40, 249,997.05 and 82,440.90 is: 123,679.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,640.40 : 249,997.05 = 82,440.90 : x
  2. Step 2: Convert to fraction form
    166,640.40/249,997.05 = 82,440.90/x
  3. Step 3: Cross multiply
    166,640.40x = 249,997.05 × 82,440.90
  4. Step 4: Simplify right side
    166,640.40x = 20,609,981,799.35
  5. Step 5: Solve for x
    x = 20,609,981,799.35/166,640.40
  6. Step 6: Final answer
    x = 123,679.38

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1.5x scale

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.