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Finding the Fourth Proportional to 101,620.50, 140,010.46 and 67,103.93

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Solution

The fourth proportional to 101,620.50, 140,010.46 and 67,103.93 is: 92,454.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,620.50 : 140,010.46 = 67,103.93 : x
  2. Step 2: Convert to fraction form
    101,620.50/140,010.46 = 67,103.93/x
  3. Step 3: Cross multiply
    101,620.50x = 140,010.46 × 67,103.93
  4. Step 4: Simplify right side
    101,620.50x = 9,395,252,107.11
  5. Step 5: Solve for x
    x = 9,395,252,107.11/101,620.50
  6. Step 6: Final answer
    x = 92,454.30

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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.