Home / 100,093.24-138,126.54-54,771.04

Finding the Fourth Proportional to 100,093.24, 138,126.54 and 54,771.04

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Solution

The fourth proportional to 100,093.24, 138,126.54 and 54,771.04 is: 75,582.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,093.24 : 138,126.54 = 54,771.04 : x
  2. Step 2: Convert to fraction form
    100,093.24/138,126.54 = 54,771.04/x
  3. Step 3: Cross multiply
    100,093.24x = 138,126.54 × 54,771.04
  4. Step 4: Simplify right side
    100,093.24x = 7,565,334,247.40
  5. Step 5: Solve for x
    x = 7,565,334,247.40/100,093.24
  6. Step 6: Final answer
    x = 75,582.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.