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Finding the Fourth Proportional to 84,230.10, 125,999.55 and 75,935.70

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Solution

The fourth proportional to 84,230.10, 125,999.55 and 75,935.70 is: 113,591.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,230.10 : 125,999.55 = 75,935.70 : x
  2. Step 2: Convert to fraction form
    84,230.10/125,999.55 = 75,935.70/x
  3. Step 3: Cross multiply
    84,230.10x = 125,999.55 × 75,935.70
  4. Step 4: Simplify right side
    84,230.10x = 9,567,864,028.94
  5. Step 5: Solve for x
    x = 9,567,864,028.94/84,230.10
  6. Step 6: Final answer
    x = 113,591.98

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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.