Home / 135,316.91-203,132.46-79,197.30

Finding the Fourth Proportional to 135,316.91, 203,132.46 and 79,197.30

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Solution

The fourth proportional to 135,316.91, 203,132.46 and 79,197.30 is: 118,887.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,316.91 : 203,132.46 = 79,197.30 : x
  2. Step 2: Convert to fraction form
    135,316.91/203,132.46 = 79,197.30/x
  3. Step 3: Cross multiply
    135,316.91x = 203,132.46 × 79,197.30
  4. Step 4: Simplify right side
    135,316.91x = 16,087,542,374.36
  5. Step 5: Solve for x
    x = 16,087,542,374.36/135,316.91
  6. Step 6: Final answer
    x = 118,887.89

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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.