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Finding the Fourth Proportional to 119,891, 179,839.80 and 36,785

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Solution

The fourth proportional to 119,891, 179,839.80 and 36,785 is: 55,178.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,891 : 179,839.80 = 36,785 : x
  2. Step 2: Convert to fraction form
    119,891/179,839.80 = 36,785/x
  3. Step 3: Cross multiply
    119,891x = 179,839.80 × 36,785
  4. Step 4: Simplify right side
    119,891x = 6,615,407,043
  5. Step 5: Solve for x
    x = 6,615,407,043/119,891
  6. Step 6: Final answer
    x = 55,178.51

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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.