Home / 186,781.13-280,005.27-68,424.79

Finding the Fourth Proportional to 186,781.13, 280,005.27 and 68,424.79

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Solution

The fourth proportional to 186,781.13, 280,005.27 and 68,424.79 is: 102,576.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,781.13 : 280,005.27 = 68,424.79 : x
  2. Step 2: Convert to fraction form
    186,781.13/280,005.27 = 68,424.79/x
  3. Step 3: Cross multiply
    186,781.13x = 280,005.27 × 68,424.79
  4. Step 4: Simplify right side
    186,781.13x = 19,159,301,798.64
  5. Step 5: Solve for x
    x = 19,159,301,798.64/186,781.13
  6. Step 6: Final answer
    x = 102,576.22

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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.