Home / 206,515.80-285,006.51-114,639.93

Finding the Fourth Proportional to 206,515.80, 285,006.51 and 114,639.93

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Solution

The fourth proportional to 206,515.80, 285,006.51 and 114,639.93 is: 158,211.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,515.80 : 285,006.51 = 114,639.93 : x
  2. Step 2: Convert to fraction form
    206,515.80/285,006.51 = 114,639.93/x
  3. Step 3: Cross multiply
    206,515.80x = 285,006.51 × 114,639.93
  4. Step 4: Simplify right side
    206,515.80x = 32,673,126,355.94
  5. Step 5: Solve for x
    x = 32,673,126,355.94/206,515.80
  6. Step 6: Final answer
    x = 158,211.27

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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.