Home / 166,140.20-249,040.20-81,770.60

Finding the Fourth Proportional to 166,140.20, 249,040.20 and 81,770.60

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Solution

The fourth proportional to 166,140.20, 249,040.20 and 81,770.60 is: 122,572.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,140.20 : 249,040.20 = 81,770.60 : x
  2. Step 2: Convert to fraction form
    166,140.20/249,040.20 = 81,770.60/x
  3. Step 3: Cross multiply
    166,140.20x = 249,040.20 × 81,770.60
  4. Step 4: Simplify right side
    166,140.20x = 20,364,166,578.12
  5. Step 5: Solve for x
    x = 20,364,166,578.12/166,140.20
  6. Step 6: Final answer
    x = 122,572.18

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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.