Home / 206,683.16-309,904.08-80,175.58

Finding the Fourth Proportional to 206,683.16, 309,904.08 and 80,175.58

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Solution

The fourth proportional to 206,683.16, 309,904.08 and 80,175.58 is: 120,216.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,683.16 : 309,904.08 = 80,175.58 : x
  2. Step 2: Convert to fraction form
    206,683.16/309,904.08 = 80,175.58/x
  3. Step 3: Cross multiply
    206,683.16x = 309,904.08 × 80,175.58
  4. Step 4: Simplify right side
    206,683.16x = 24,846,738,957.49
  5. Step 5: Solve for x
    x = 24,846,738,957.49/206,683.16
  6. Step 6: Final answer
    x = 120,216.56

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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.