Home / 204,027.30-305,931.60-85,564.80

Finding the Fourth Proportional to 204,027.30, 305,931.60 and 85,564.80

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Solution

The fourth proportional to 204,027.30, 305,931.60 and 85,564.80 is: 128,301.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,027.30 : 305,931.60 = 85,564.80 : x
  2. Step 2: Convert to fraction form
    204,027.30/305,931.60 = 85,564.80/x
  3. Step 3: Cross multiply
    204,027.30x = 305,931.60 × 85,564.80
  4. Step 4: Simplify right side
    204,027.30x = 26,176,976,167.68
  5. Step 5: Solve for x
    x = 26,176,976,167.68/204,027.30
  6. Step 6: Final answer
    x = 128,301.34

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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.