Home / 206,072.18-309,197.16-111,283.50

Finding the Fourth Proportional to 206,072.18, 309,197.16 and 111,283.50

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Solution

The fourth proportional to 206,072.18, 309,197.16 and 111,283.50 is: 166,973.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,072.18 : 309,197.16 = 111,283.50 : x
  2. Step 2: Convert to fraction form
    206,072.18/309,197.16 = 111,283.50/x
  3. Step 3: Cross multiply
    206,072.18x = 309,197.16 × 111,283.50
  4. Step 4: Simplify right side
    206,072.18x = 34,408,542,154.86
  5. Step 5: Solve for x
    x = 34,408,542,154.86/206,072.18
  6. Step 6: Final answer
    x = 166,973.26

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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.