Home / 136,873.29-188,780.16-82,368.66

Finding the Fourth Proportional to 136,873.29, 188,780.16 and 82,368.66

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Solution

The fourth proportional to 136,873.29, 188,780.16 and 82,368.66 is: 113,605.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,873.29 : 188,780.16 = 82,368.66 : x
  2. Step 2: Convert to fraction form
    136,873.29/188,780.16 = 82,368.66/x
  3. Step 3: Cross multiply
    136,873.29x = 188,780.16 × 82,368.66
  4. Step 4: Simplify right side
    136,873.29x = 15,549,568,813.79
  5. Step 5: Solve for x
    x = 15,549,568,813.79/136,873.29
  6. Step 6: Final answer
    x = 113,605.58

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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.