Home / 133,372.30-199,621.05-103,629.10

Finding the Fourth Proportional to 133,372.30, 199,621.05 and 103,629.10

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Solution

The fourth proportional to 133,372.30, 199,621.05 and 103,629.10 is: 155,103.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,372.30 : 199,621.05 = 103,629.10 : x
  2. Step 2: Convert to fraction form
    133,372.30/199,621.05 = 103,629.10/x
  3. Step 3: Cross multiply
    133,372.30x = 199,621.05 × 103,629.10
  4. Step 4: Simplify right side
    133,372.30x = 20,686,549,752.56
  5. Step 5: Solve for x
    x = 20,686,549,752.56/133,372.30
  6. Step 6: Final answer
    x = 155,103.79

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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.