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Finding the Fourth Proportional to 101,200.88, 151,775.28 and 30,105.04

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Solution

The fourth proportional to 101,200.88, 151,775.28 and 30,105.04 is: 45,149.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,200.88 : 151,775.28 = 30,105.04 : x
  2. Step 2: Convert to fraction form
    101,200.88/151,775.28 = 30,105.04/x
  3. Step 3: Cross multiply
    101,200.88x = 151,775.28 × 30,105.04
  4. Step 4: Simplify right side
    101,200.88x = 4,569,200,875.41
  5. Step 5: Solve for x
    x = 4,569,200,875.41/101,200.88
  6. Step 6: Final answer
    x = 45,149.81

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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.