Home / 206,886.24-285,535.44-122,012.64

Finding the Fourth Proportional to 206,886.24, 285,535.44 and 122,012.64

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Solution

The fourth proportional to 206,886.24, 285,535.44 and 122,012.64 is: 168,396.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,886.24 : 285,535.44 = 122,012.64 : x
  2. Step 2: Convert to fraction form
    206,886.24/285,535.44 = 122,012.64/x
  3. Step 3: Cross multiply
    206,886.24x = 285,535.44 × 122,012.64
  4. Step 4: Simplify right side
    206,886.24x = 34,838,932,847.96
  5. Step 5: Solve for x
    x = 34,838,932,847.96/206,886.24
  6. Step 6: Final answer
    x = 168,396.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.