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Finding the Fourth Proportional to 85,149.01, 127,738.98 and 35,201.98

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Solution

The fourth proportional to 85,149.01, 127,738.98 and 35,201.98 is: 52,809.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,149.01 : 127,738.98 = 35,201.98 : x
  2. Step 2: Convert to fraction form
    85,149.01/127,738.98 = 35,201.98/x
  3. Step 3: Cross multiply
    85,149.01x = 127,738.98 × 35,201.98
  4. Step 4: Simplify right side
    85,149.01x = 4,496,665,019.18
  5. Step 5: Solve for x
    x = 4,496,665,019.18/85,149.01
  6. Step 6: Final answer
    x = 52,809.36

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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.