Home / 206,120.54-309,350.38-87,925.34

Finding the Fourth Proportional to 206,120.54, 309,350.38 and 87,925.34

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Solution

The fourth proportional to 206,120.54, 309,350.38 and 87,925.34 is: 131,960.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,120.54 : 309,350.38 = 87,925.34 : x
  2. Step 2: Convert to fraction form
    206,120.54/309,350.38 = 87,925.34/x
  3. Step 3: Cross multiply
    206,120.54x = 309,350.38 × 87,925.34
  4. Step 4: Simplify right side
    206,120.54x = 27,199,737,340.63
  5. Step 5: Solve for x
    x = 27,199,737,340.63/206,120.54
  6. Step 6: Final answer
    x = 131,960.34

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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.