Home / 119,965.62-164,352.14-115,479.78

Finding the Fourth Proportional to 119,965.62, 164,352.14 and 115,479.78

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Solution

The fourth proportional to 119,965.62, 164,352.14 and 115,479.78 is: 158,206.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,965.62 : 164,352.14 = 115,479.78 : x
  2. Step 2: Convert to fraction form
    119,965.62/164,352.14 = 115,479.78/x
  3. Step 3: Cross multiply
    119,965.62x = 164,352.14 × 115,479.78
  4. Step 4: Simplify right side
    119,965.62x = 18,979,348,392.33
  5. Step 5: Solve for x
    x = 18,979,348,392.33/119,965.62
  6. Step 6: Final answer
    x = 158,206.56

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.