Home / 159,081.12-238,670.64-80,168.76

Finding the Fourth Proportional to 159,081.12, 238,670.64 and 80,168.76

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Solution

The fourth proportional to 159,081.12, 238,670.64 and 80,168.76 is: 120,277.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,081.12 : 238,670.64 = 80,168.76 : x
  2. Step 2: Convert to fraction form
    159,081.12/238,670.64 = 80,168.76/x
  3. Step 3: Cross multiply
    159,081.12x = 238,670.64 × 80,168.76
  4. Step 4: Simplify right side
    159,081.12x = 19,133,929,257.21
  5. Step 5: Solve for x
    x = 19,133,929,257.21/159,081.12
  6. Step 6: Final answer
    x = 120,277.81

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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.