Home / 120,688.60-181,119.30-50,618.20

Finding the Fourth Proportional to 120,688.60, 181,119.30 and 50,618.20

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Solution

The fourth proportional to 120,688.60, 181,119.30 and 50,618.20 is: 75,963.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,688.60 : 181,119.30 = 50,618.20 : x
  2. Step 2: Convert to fraction form
    120,688.60/181,119.30 = 50,618.20/x
  3. Step 3: Cross multiply
    120,688.60x = 181,119.30 × 50,618.20
  4. Step 4: Simplify right side
    120,688.60x = 9,167,932,951.26
  5. Step 5: Solve for x
    x = 9,167,932,951.26/120,688.60
  6. Step 6: Final answer
    x = 75,963.54

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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.