Home / 100,691.22-151,027.08-30,571.14

Finding the Fourth Proportional to 100,691.22, 151,027.08 and 30,571.14

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Solution

The fourth proportional to 100,691.22, 151,027.08 and 30,571.14 is: 45,853.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,691.22 : 151,027.08 = 30,571.14 : x
  2. Step 2: Convert to fraction form
    100,691.22/151,027.08 = 30,571.14/x
  3. Step 3: Cross multiply
    100,691.22x = 151,027.08 × 30,571.14
  4. Step 4: Simplify right side
    100,691.22x = 4,617,070,006.47
  5. Step 5: Solve for x
    x = 4,617,070,006.47/100,691.22
  6. Step 6: Final answer
    x = 45,853.75

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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.