Home / 166,409.40-249,635.70-82,212.60

Finding the Fourth Proportional to 166,409.40, 249,635.70 and 82,212.60

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Solution

The fourth proportional to 166,409.40, 249,635.70 and 82,212.60 is: 123,329.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,409.40 : 249,635.70 = 82,212.60 : x
  2. Step 2: Convert to fraction form
    166,409.40/249,635.70 = 82,212.60/x
  3. Step 3: Cross multiply
    166,409.40x = 249,635.70 × 82,212.60
  4. Step 4: Simplify right side
    166,409.40x = 20,523,199,949.82
  5. Step 5: Solve for x
    x = 20,523,199,949.82/166,409.40
  6. Step 6: Final answer
    x = 123,329.57

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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.