Home / 166,682.16-249,731.68-138,781.60

Finding the Fourth Proportional to 166,682.16, 249,731.68 and 138,781.60

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Solution

The fourth proportional to 166,682.16, 249,731.68 and 138,781.60 is: 207,929.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,682.16 : 249,731.68 = 138,781.60 : x
  2. Step 2: Convert to fraction form
    166,682.16/249,731.68 = 138,781.60/x
  3. Step 3: Cross multiply
    166,682.16x = 249,731.68 × 138,781.60
  4. Step 4: Simplify right side
    166,682.16x = 34,658,162,121.09
  5. Step 5: Solve for x
    x = 34,658,162,121.09/166,682.16
  6. Step 6: Final answer
    x = 207,929.64

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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.