Home / 186,864.30-280,383.93-81,669.60

Finding the Fourth Proportional to 186,864.30, 280,383.93 and 81,669.60

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Solution

The fourth proportional to 186,864.30, 280,383.93 and 81,669.60 is: 122,542.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,864.30 : 280,383.93 = 81,669.60 : x
  2. Step 2: Convert to fraction form
    186,864.30/280,383.93 = 81,669.60/x
  3. Step 3: Cross multiply
    186,864.30x = 280,383.93 × 81,669.60
  4. Step 4: Simplify right side
    186,864.30x = 22,898,843,409.53
  5. Step 5: Solve for x
    x = 22,898,843,409.53/186,864.30
  6. Step 6: Final answer
    x = 122,542.63

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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.