Home / 204,206.72-305,998.22-85,813.34

Finding the Fourth Proportional to 204,206.72, 305,998.22 and 85,813.34

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Solution

The fourth proportional to 204,206.72, 305,998.22 and 85,813.34 is: 128,588.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,206.72 : 305,998.22 = 85,813.34 : x
  2. Step 2: Convert to fraction form
    204,206.72/305,998.22 = 85,813.34/x
  3. Step 3: Cross multiply
    204,206.72x = 305,998.22 × 85,813.34
  4. Step 4: Simplify right side
    204,206.72x = 26,258,729,292.25
  5. Step 5: Solve for x
    x = 26,258,729,292.25/204,206.72
  6. Step 6: Final answer
    x = 128,588.96

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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.