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Finding the Fourth Proportional to 101,469.60, 140,025.60 and 56,146.56

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Solution

The fourth proportional to 101,469.60, 140,025.60 and 56,146.56 is: 77,480.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,469.60 : 140,025.60 = 56,146.56 : x
  2. Step 2: Convert to fraction form
    101,469.60/140,025.60 = 56,146.56/x
  3. Step 3: Cross multiply
    101,469.60x = 140,025.60 × 56,146.56
  4. Step 4: Simplify right side
    101,469.60x = 7,861,955,751.94
  5. Step 5: Solve for x
    x = 7,861,955,751.94/101,469.60
  6. Step 6: Final answer
    x = 77,480.90

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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.