Home / 186,440.66-257,279.25-105,857.61

Finding the Fourth Proportional to 186,440.66, 257,279.25 and 105,857.61

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Solution

The fourth proportional to 186,440.66, 257,279.25 and 105,857.61 is: 146,078.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,440.66 : 257,279.25 = 105,857.61 : x
  2. Step 2: Convert to fraction form
    186,440.66/257,279.25 = 105,857.61/x
  3. Step 3: Cross multiply
    186,440.66x = 257,279.25 × 105,857.61
  4. Step 4: Simplify right side
    186,440.66x = 27,234,966,507.59
  5. Step 5: Solve for x
    x = 27,234,966,507.59/186,440.66
  6. Step 6: Final answer
    x = 146,078.47

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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.