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Finding the Fourth Proportional to 85,107.60, 127,661.40 and 75,922.20

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Solution

The fourth proportional to 85,107.60, 127,661.40 and 75,922.20 is: 113,883.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,107.60 : 127,661.40 = 75,922.20 : x
  2. Step 2: Convert to fraction form
    85,107.60/127,661.40 = 75,922.20/x
  3. Step 3: Cross multiply
    85,107.60x = 127,661.40 × 75,922.20
  4. Step 4: Simplify right side
    85,107.60x = 9,692,334,343.08
  5. Step 5: Solve for x
    x = 9,692,334,343.08/85,107.60
  6. Step 6: Final answer
    x = 113,883.30

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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.