Home / 73,150.20-109,725.30-69,067.80

Finding the Fourth Proportional to 73,150.20, 109,725.30 and 69,067.80

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Solution

The fourth proportional to 73,150.20, 109,725.30 and 69,067.80 is: 103,601.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,150.20 : 109,725.30 = 69,067.80 : x
  2. Step 2: Convert to fraction form
    73,150.20/109,725.30 = 69,067.80/x
  3. Step 3: Cross multiply
    73,150.20x = 109,725.30 × 69,067.80
  4. Step 4: Simplify right side
    73,150.20x = 7,578,485,075.34
  5. Step 5: Solve for x
    x = 7,578,485,075.34/73,150.20
  6. Step 6: Final answer
    x = 103,601.70

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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.