Home / 90,490.32-135,482.22-68,234.04

Finding the Fourth Proportional to 90,490.32, 135,482.22 and 68,234.04

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Solution

The fourth proportional to 90,490.32, 135,482.22 and 68,234.04 is: 102,160.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,490.32 : 135,482.22 = 68,234.04 : x
  2. Step 2: Convert to fraction form
    90,490.32/135,482.22 = 68,234.04/x
  3. Step 3: Cross multiply
    90,490.32x = 135,482.22 × 68,234.04
  4. Step 4: Simplify right side
    90,490.32x = 9,244,499,218.77
  5. Step 5: Solve for x
    x = 9,244,499,218.77/90,490.32
  6. Step 6: Final answer
    x = 102,160.09

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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.