Home / 100,623.06-150,939.75-25,743.86

Finding the Fourth Proportional to 100,623.06, 150,939.75 and 25,743.86

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Solution

The fourth proportional to 100,623.06, 150,939.75 and 25,743.86 is: 38,617.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,623.06 : 150,939.75 = 25,743.86 : x
  2. Step 2: Convert to fraction form
    100,623.06/150,939.75 = 25,743.86/x
  3. Step 3: Cross multiply
    100,623.06x = 150,939.75 × 25,743.86
  4. Step 4: Simplify right side
    100,623.06x = 3,885,771,700.30
  5. Step 5: Solve for x
    x = 3,885,771,700.30/100,623.06
  6. Step 6: Final answer
    x = 38,617.11

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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.