Home / 166,678.20-249,725.64-138,777.60

Finding the Fourth Proportional to 166,678.20, 249,725.64 and 138,777.60

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Solution

The fourth proportional to 166,678.20, 249,725.64 and 138,777.60 is: 207,923.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,678.20 : 249,725.64 = 138,777.60 : x
  2. Step 2: Convert to fraction form
    166,678.20/249,725.64 = 138,777.60/x
  3. Step 3: Cross multiply
    166,678.20x = 249,725.64 × 138,777.60
  4. Step 4: Simplify right side
    166,678.20x = 34,656,324,977.66
  5. Step 5: Solve for x
    x = 34,656,324,977.66/166,678.20
  6. Step 6: Final answer
    x = 207,923.56

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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.