Home / 135,555.26-203,358.47-51,340.64

Finding the Fourth Proportional to 135,555.26, 203,358.47 and 51,340.64

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Solution

The fourth proportional to 135,555.26, 203,358.47 and 51,340.64 is: 77,020.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,555.26 : 203,358.47 = 51,340.64 : x
  2. Step 2: Convert to fraction form
    135,555.26/203,358.47 = 51,340.64/x
  3. Step 3: Cross multiply
    135,555.26x = 203,358.47 × 51,340.64
  4. Step 4: Simplify right side
    135,555.26x = 10,440,552,725.73
  5. Step 5: Solve for x
    x = 10,440,552,725.73/135,555.26
  6. Step 6: Final answer
    x = 77,020.64

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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.