Home / 135,907.36-203,780.28-51,673.69

Finding the Fourth Proportional to 135,907.36, 203,780.28 and 51,673.69

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Solution

The fourth proportional to 135,907.36, 203,780.28 and 51,673.69 is: 77,479.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,907.36 : 203,780.28 = 51,673.69 : x
  2. Step 2: Convert to fraction form
    135,907.36/203,780.28 = 51,673.69/x
  3. Step 3: Cross multiply
    135,907.36x = 203,780.28 × 51,673.69
  4. Step 4: Simplify right side
    135,907.36x = 10,530,079,016.83
  5. Step 5: Solve for x
    x = 10,530,079,016.83/135,907.36
  6. Step 6: Final answer
    x = 77,479.83

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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.