Home / 186,981.46-258,054.73-115,359.64

Finding the Fourth Proportional to 186,981.46, 258,054.73 and 115,359.64

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Solution

The fourth proportional to 186,981.46, 258,054.73 and 115,359.64 is: 159,208.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,981.46 : 258,054.73 = 115,359.64 : x
  2. Step 2: Convert to fraction form
    186,981.46/258,054.73 = 115,359.64/x
  3. Step 3: Cross multiply
    186,981.46x = 258,054.73 × 115,359.64
  4. Step 4: Simplify right side
    186,981.46x = 29,769,099,819.56
  5. Step 5: Solve for x
    x = 29,769,099,819.56/186,981.46
  6. Step 6: Final answer
    x = 159,208.83

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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.