Home / 120,856.90-181,350.15-50,743.30

Finding the Fourth Proportional to 120,856.90, 181,350.15 and 50,743.30

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Solution

The fourth proportional to 120,856.90, 181,350.15 and 50,743.30 is: 76,142.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,856.90 : 181,350.15 = 50,743.30 : x
  2. Step 2: Convert to fraction form
    120,856.90/181,350.15 = 50,743.30/x
  3. Step 3: Cross multiply
    120,856.90x = 181,350.15 × 50,743.30
  4. Step 4: Simplify right side
    120,856.90x = 9,202,305,066.50
  5. Step 5: Solve for x
    x = 9,202,305,066.50/120,856.90
  6. Step 6: Final answer
    x = 76,142.16

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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.