Home / 90,745.20-136,024.92-88,468.56

Finding the Fourth Proportional to 90,745.20, 136,024.92 and 88,468.56

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Solution

The fourth proportional to 90,745.20, 136,024.92 and 88,468.56 is: 132,612.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,745.20 : 136,024.92 = 88,468.56 : x
  2. Step 2: Convert to fraction form
    90,745.20/136,024.92 = 88,468.56/x
  3. Step 3: Cross multiply
    90,745.20x = 136,024.92 × 88,468.56
  4. Step 4: Simplify right side
    90,745.20x = 12,033,928,796.52
  5. Step 5: Solve for x
    x = 12,033,928,796.52/90,745.20
  6. Step 6: Final answer
    x = 132,612.29

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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.