Home / 100,839.06-151,239.15-30,709.26

Finding the Fourth Proportional to 100,839.06, 151,239.15 and 30,709.26

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Solution

The fourth proportional to 100,839.06, 151,239.15 and 30,709.26 is: 46,057.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,839.06 : 151,239.15 = 30,709.26 : x
  2. Step 2: Convert to fraction form
    100,839.06/151,239.15 = 30,709.26/x
  3. Step 3: Cross multiply
    100,839.06x = 151,239.15 × 30,709.26
  4. Step 4: Simplify right side
    100,839.06x = 4,644,442,379.53
  5. Step 5: Solve for x
    x = 4,644,442,379.53/100,839.06
  6. Step 6: Final answer
    x = 46,057.97

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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.