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Finding the Fourth Proportional to 101,067.20, 151,600.80 and 30,946.40

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Solution

The fourth proportional to 101,067.20, 151,600.80 and 30,946.40 is: 46,419.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,067.20 : 151,600.80 = 30,946.40 : x
  2. Step 2: Convert to fraction form
    101,067.20/151,600.80 = 30,946.40/x
  3. Step 3: Cross multiply
    101,067.20x = 151,600.80 × 30,946.40
  4. Step 4: Simplify right side
    101,067.20x = 4,691,498,997.12
  5. Step 5: Solve for x
    x = 4,691,498,997.12/101,067.20
  6. Step 6: Final answer
    x = 46,419.60

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1.5x scale

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.