Home / 135,918.56-203,951.16-79,868.18

Finding the Fourth Proportional to 135,918.56, 203,951.16 and 79,868.18

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Solution

The fourth proportional to 135,918.56, 203,951.16 and 79,868.18 is: 119,845.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,918.56 : 203,951.16 = 79,868.18 : x
  2. Step 2: Convert to fraction form
    135,918.56/203,951.16 = 79,868.18/x
  3. Step 3: Cross multiply
    135,918.56x = 203,951.16 × 79,868.18
  4. Step 4: Simplify right side
    135,918.56x = 16,289,207,958.09
  5. Step 5: Solve for x
    x = 16,289,207,958.09/135,918.56
  6. Step 6: Final answer
    x = 119,845.35

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1.5x scale

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.