Home / 135,975.36-203,600.16-79,769.28

Finding the Fourth Proportional to 135,975.36, 203,600.16 and 79,769.28

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Solution

The fourth proportional to 135,975.36, 203,600.16 and 79,769.28 is: 119,441.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,975.36 : 203,600.16 = 79,769.28 : x
  2. Step 2: Convert to fraction form
    135,975.36/203,600.16 = 79,769.28/x
  3. Step 3: Cross multiply
    135,975.36x = 203,600.16 × 79,769.28
  4. Step 4: Simplify right side
    135,975.36x = 16,241,038,171.08
  5. Step 5: Solve for x
    x = 16,241,038,171.08/135,975.36
  6. Step 6: Final answer
    x = 119,441.04

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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.