Home / 207,923.25-311,918.51-81,494.94

Finding the Fourth Proportional to 207,923.25, 311,918.51 and 81,494.94

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Solution

The fourth proportional to 207,923.25, 311,918.51 and 81,494.94 is: 122,255.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,923.25 : 311,918.51 = 81,494.94 : x
  2. Step 2: Convert to fraction form
    207,923.25/311,918.51 = 81,494.94/x
  3. Step 3: Cross multiply
    207,923.25x = 311,918.51 × 81,494.94
  4. Step 4: Simplify right side
    207,923.25x = 25,419,781,630.77
  5. Step 5: Solve for x
    x = 25,419,781,630.77/207,923.25
  6. Step 6: Final answer
    x = 122,255.60

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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.