Home / 133,370.20-199,986.90-39,863.80

Finding the Fourth Proportional to 133,370.20, 199,986.90 and 39,863.80

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Solution

The fourth proportional to 133,370.20, 199,986.90 and 39,863.80 is: 59,775.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,370.20 : 199,986.90 = 39,863.80 : x
  2. Step 2: Convert to fraction form
    133,370.20/199,986.90 = 39,863.80/x
  3. Step 3: Cross multiply
    133,370.20x = 199,986.90 × 39,863.80
  4. Step 4: Simplify right side
    133,370.20x = 7,972,237,784.22
  5. Step 5: Solve for x
    x = 7,972,237,784.22/133,370.20
  6. Step 6: Final answer
    x = 59,775.26

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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.