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Finding the Fourth Proportional to 128,563.56, 192,745.44 and 48,600.24

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Solution

The fourth proportional to 128,563.56, 192,745.44 and 48,600.24 is: 72,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,563.56 : 192,745.44 = 48,600.24 : x
  2. Step 2: Convert to fraction form
    128,563.56/192,745.44 = 48,600.24/x
  3. Step 3: Cross multiply
    128,563.56x = 192,745.44 × 48,600.24
  4. Step 4: Simplify right side
    128,563.56x = 9,367,474,642.91
  5. Step 5: Solve for x
    x = 9,367,474,642.91/128,563.56
  6. Step 6: Final answer
    x = 72,862.60

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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.