Home / 100,766.90-151,116.42-50,815.10

Finding the Fourth Proportional to 100,766.90, 151,116.42 and 50,815.10

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Solution

The fourth proportional to 100,766.90, 151,116.42 and 50,815.10 is: 76,205.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,766.90 : 151,116.42 = 50,815.10 : x
  2. Step 2: Convert to fraction form
    100,766.90/151,116.42 = 50,815.10/x
  3. Step 3: Cross multiply
    100,766.90x = 151,116.42 × 50,815.10
  4. Step 4: Simplify right side
    100,766.90x = 7,678,995,993.94
  5. Step 5: Solve for x
    x = 7,678,995,993.94/100,766.90
  6. Step 6: Final answer
    x = 76,205.54

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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.