Home / 206,273.49-309,170.77-78,108.27

Finding the Fourth Proportional to 206,273.49, 309,170.77 and 78,108.27

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Solution

The fourth proportional to 206,273.49, 309,170.77 and 78,108.27 is: 117,071.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,273.49 : 309,170.77 = 78,108.27 : x
  2. Step 2: Convert to fraction form
    206,273.49/309,170.77 = 78,108.27/x
  3. Step 3: Cross multiply
    206,273.49x = 309,170.77 × 78,108.27
  4. Step 4: Simplify right side
    206,273.49x = 24,148,795,672.59
  5. Step 5: Solve for x
    x = 24,148,795,672.59/206,273.49
  6. Step 6: Final answer
    x = 117,071.74

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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.