Home / 166,291.15-249,272.70-81,982.30

Finding the Fourth Proportional to 166,291.15, 249,272.70 and 81,982.30

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Solution

The fourth proportional to 166,291.15, 249,272.70 and 81,982.30 is: 122,892.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,291.15 : 249,272.70 = 81,982.30 : x
  2. Step 2: Convert to fraction form
    166,291.15/249,272.70 = 81,982.30/x
  3. Step 3: Cross multiply
    166,291.15x = 249,272.70 × 81,982.30
  4. Step 4: Simplify right side
    166,291.15x = 20,435,949,273.21
  5. Step 5: Solve for x
    x = 20,435,949,273.21/166,291.15
  6. Step 6: Final answer
    x = 122,892.58

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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.