Home / 120,855.61-181,344.84-54,282.16

Finding the Fourth Proportional to 120,855.61, 181,344.84 and 54,282.16

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Solution

The fourth proportional to 120,855.61, 181,344.84 and 54,282.16 is: 81,450.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,855.61 : 181,344.84 = 54,282.16 : x
  2. Step 2: Convert to fraction form
    120,855.61/181,344.84 = 54,282.16/x
  3. Step 3: Cross multiply
    120,855.61x = 181,344.84 × 54,282.16
  4. Step 4: Simplify right side
    120,855.61x = 9,843,789,620.05
  5. Step 5: Solve for x
    x = 9,843,789,620.05/120,855.61
  6. Step 6: Final answer
    x = 81,450.83

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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.