Home / 104,226.15-155,965.50-90,234.30

Finding the Fourth Proportional to 104,226.15, 155,965.50 and 90,234.30

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Solution

The fourth proportional to 104,226.15, 155,965.50 and 90,234.30 is: 135,027.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,226.15 : 155,965.50 = 90,234.30 : x
  2. Step 2: Convert to fraction form
    104,226.15/155,965.50 = 90,234.30/x
  3. Step 3: Cross multiply
    104,226.15x = 155,965.50 × 90,234.30
  4. Step 4: Simplify right side
    104,226.15x = 14,073,437,716.65
  5. Step 5: Solve for x
    x = 14,073,437,716.65/104,226.15
  6. Step 6: Final answer
    x = 135,027.90

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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.