Home / 206,124.20-309,006.30-79,850.60

Finding the Fourth Proportional to 206,124.20, 309,006.30 and 79,850.60

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Solution

The fourth proportional to 206,124.20, 309,006.30 and 79,850.60 is: 119,706.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,124.20 : 309,006.30 = 79,850.60 : x
  2. Step 2: Convert to fraction form
    206,124.20/309,006.30 = 79,850.60/x
  3. Step 3: Cross multiply
    206,124.20x = 309,006.30 × 79,850.60
  4. Step 4: Simplify right side
    206,124.20x = 24,674,338,458.78
  5. Step 5: Solve for x
    x = 24,674,338,458.78/206,124.20
  6. Step 6: Final answer
    x = 119,706.17

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1.5x scale

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.