Home / 185,131.40-277,639.68-66,787.36

Finding the Fourth Proportional to 185,131.40, 277,639.68 and 66,787.36

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Solution

The fourth proportional to 185,131.40, 277,639.68 and 66,787.36 is: 100,160.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,131.40 : 277,639.68 = 66,787.36 : x
  2. Step 2: Convert to fraction form
    185,131.40/277,639.68 = 66,787.36/x
  3. Step 3: Cross multiply
    185,131.40x = 277,639.68 × 66,787.36
  4. Step 4: Simplify right side
    185,131.40x = 18,542,820,814.80
  5. Step 5: Solve for x
    x = 18,542,820,814.80/185,131.40
  6. Step 6: Final answer
    x = 100,160.33

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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.