Home / 85,273.44-117,654.57-81,910.32

Finding the Fourth Proportional to 85,273.44, 117,654.57 and 81,910.32

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Solution

The fourth proportional to 85,273.44, 117,654.57 and 81,910.32 is: 113,014.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,273.44 : 117,654.57 = 81,910.32 : x
  2. Step 2: Convert to fraction form
    85,273.44/117,654.57 = 81,910.32/x
  3. Step 3: Cross multiply
    85,273.44x = 117,654.57 × 81,910.32
  4. Step 4: Simplify right side
    85,273.44x = 9,637,123,478.16
  5. Step 5: Solve for x
    x = 9,637,123,478.16/85,273.44
  6. Step 6: Final answer
    x = 113,014.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.