Home / 100,621.26-150,975-34,068.42

Finding the Fourth Proportional to 100,621.26, 150,975 and 34,068.42

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Solution

The fourth proportional to 100,621.26, 150,975 and 34,068.42 is: 51,117.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,621.26 : 150,975 = 34,068.42 : x
  2. Step 2: Convert to fraction form
    100,621.26/150,975 = 34,068.42/x
  3. Step 3: Cross multiply
    100,621.26x = 150,975 × 34,068.42
  4. Step 4: Simplify right side
    100,621.26x = 5,143,479,709.50
  5. Step 5: Solve for x
    x = 5,143,479,709.50/100,621.26
  6. Step 6: Final answer
    x = 51,117.23

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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.