Home / 100,805.21-151,226.04-34,239.31

Finding the Fourth Proportional to 100,805.21, 151,226.04 and 34,239.31

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Solution

The fourth proportional to 100,805.21, 151,226.04 and 34,239.31 is: 51,365.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,805.21 : 151,226.04 = 34,239.31 : x
  2. Step 2: Convert to fraction form
    100,805.21/151,226.04 = 34,239.31/x
  3. Step 3: Cross multiply
    100,805.21x = 151,226.04 × 34,239.31
  4. Step 4: Simplify right side
    100,805.21x = 5,177,874,821.37
  5. Step 5: Solve for x
    x = 5,177,874,821.37/100,805.21
  6. Step 6: Final answer
    x = 51,365.15

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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.