Home / 120,939.40-181,344.30-50,739.40

Finding the Fourth Proportional to 120,939.40, 181,344.30 and 50,739.40

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Solution

The fourth proportional to 120,939.40, 181,344.30 and 50,739.40 is: 76,081.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,939.40 : 181,344.30 = 50,739.40 : x
  2. Step 2: Convert to fraction form
    120,939.40/181,344.30 = 50,739.40/x
  3. Step 3: Cross multiply
    120,939.40x = 181,344.30 × 50,739.40
  4. Step 4: Simplify right side
    120,939.40x = 9,201,300,975.42
  5. Step 5: Solve for x
    x = 9,201,300,975.42/120,939.40
  6. Step 6: Final answer
    x = 76,081.91

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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.