Home / 100,939.04-151,431.98-34,379.74

Finding the Fourth Proportional to 100,939.04, 151,431.98 and 34,379.74

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Solution

The fourth proportional to 100,939.04, 151,431.98 and 34,379.74 is: 51,577.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,939.04 : 151,431.98 = 34,379.74 : x
  2. Step 2: Convert to fraction form
    100,939.04/151,431.98 = 34,379.74/x
  3. Step 3: Cross multiply
    100,939.04x = 151,431.98 × 34,379.74
  4. Step 4: Simplify right side
    100,939.04x = 5,206,192,100.09
  5. Step 5: Solve for x
    x = 5,206,192,100.09/100,939.04
  6. Step 6: Final answer
    x = 51,577.59

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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.