Home / 239,976.61-331,165.74-131,081.02

Finding the Fourth Proportional to 239,976.61, 331,165.74 and 131,081.02

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Solution

The fourth proportional to 239,976.61, 331,165.74 and 131,081.02 is: 180,890.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,976.61 : 331,165.74 = 131,081.02 : x
  2. Step 2: Convert to fraction form
    239,976.61/331,165.74 = 131,081.02/x
  3. Step 3: Cross multiply
    239,976.61x = 331,165.74 × 131,081.02
  4. Step 4: Simplify right side
    239,976.61x = 43,409,541,332.43
  5. Step 5: Solve for x
    x = 43,409,541,332.43/239,976.61
  6. Step 6: Final answer
    x = 180,890.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.