Home / 135,284.96-202,999.42-76,124.78

Finding the Fourth Proportional to 135,284.96, 202,999.42 and 76,124.78

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Solution

The fourth proportional to 135,284.96, 202,999.42 and 76,124.78 is: 114,227.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,284.96 : 202,999.42 = 76,124.78 : x
  2. Step 2: Convert to fraction form
    135,284.96/202,999.42 = 76,124.78/x
  3. Step 3: Cross multiply
    135,284.96x = 202,999.42 × 76,124.78
  4. Step 4: Simplify right side
    135,284.96x = 15,453,286,187.63
  5. Step 5: Solve for x
    x = 15,453,286,187.63/135,284.96
  6. Step 6: Final answer
    x = 114,227.67

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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.