Home / 166,078.88-249,222-121,016.48

Finding the Fourth Proportional to 166,078.88, 249,222 and 121,016.48

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Solution

The fourth proportional to 166,078.88, 249,222 and 121,016.48 is: 181,600.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,078.88 : 249,222 = 121,016.48 : x
  2. Step 2: Convert to fraction form
    166,078.88/249,222 = 121,016.48/x
  3. Step 3: Cross multiply
    166,078.88x = 249,222 × 121,016.48
  4. Step 4: Simplify right side
    166,078.88x = 30,159,969,178.56
  5. Step 5: Solve for x
    x = 30,159,969,178.56/166,078.88
  6. Step 6: Final answer
    x = 181,600.27

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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.