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Finding the Fourth Proportional to 101,149.20, 151,594.20 and 90,003.60

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Solution

The fourth proportional to 101,149.20, 151,594.20 and 90,003.60 is: 134,890.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,149.20 : 151,594.20 = 90,003.60 : x
  2. Step 2: Convert to fraction form
    101,149.20/151,594.20 = 90,003.60/x
  3. Step 3: Cross multiply
    101,149.20x = 151,594.20 × 90,003.60
  4. Step 4: Simplify right side
    101,149.20x = 13,644,023,739.12
  5. Step 5: Solve for x
    x = 13,644,023,739.12/101,149.20
  6. Step 6: Final answer
    x = 134,890.08

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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.