Home / 135,496.70-203,255.60-40,719.51

Finding the Fourth Proportional to 135,496.70, 203,255.60 and 40,719.51

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Solution

The fourth proportional to 135,496.70, 203,255.60 and 40,719.51 is: 61,082.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,496.70 : 203,255.60 = 40,719.51 : x
  2. Step 2: Convert to fraction form
    135,496.70/203,255.60 = 40,719.51/x
  3. Step 3: Cross multiply
    135,496.70x = 203,255.60 × 40,719.51
  4. Step 4: Simplify right side
    135,496.70x = 8,276,468,233.16
  5. Step 5: Solve for x
    x = 8,276,468,233.16/135,496.70
  6. Step 6: Final answer
    x = 61,082.43

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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.