Home / 186,605.44-279,713.76-81,396.16

Finding the Fourth Proportional to 186,605.44, 279,713.76 and 81,396.16

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Solution

The fourth proportional to 186,605.44, 279,713.76 and 81,396.16 is: 122,009.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,605.44 : 279,713.76 = 81,396.16 : x
  2. Step 2: Convert to fraction form
    186,605.44/279,713.76 = 81,396.16/x
  3. Step 3: Cross multiply
    186,605.44x = 279,713.76 × 81,396.16
  4. Step 4: Simplify right side
    186,605.44x = 22,767,625,963.16
  5. Step 5: Solve for x
    x = 22,767,625,963.16/186,605.44
  6. Step 6: Final answer
    x = 122,009.44

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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.