Home / 186,288.66-279,435.42-81,103.68

Finding the Fourth Proportional to 186,288.66, 279,435.42 and 81,103.68

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Solution

The fourth proportional to 186,288.66, 279,435.42 and 81,103.68 is: 121,656.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,288.66 : 279,435.42 = 81,103.68 : x
  2. Step 2: Convert to fraction form
    186,288.66/279,435.42 = 81,103.68/x
  3. Step 3: Cross multiply
    186,288.66x = 279,435.42 × 81,103.68
  4. Step 4: Simplify right side
    186,288.66x = 22,663,240,884.35
  5. Step 5: Solve for x
    x = 22,663,240,884.35/186,288.66
  6. Step 6: Final answer
    x = 121,656.58

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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.