Home / 185,116.73-277,620.05-78,499.11

Finding the Fourth Proportional to 185,116.73, 277,620.05 and 78,499.11

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Solution

The fourth proportional to 185,116.73, 277,620.05 and 78,499.11 is: 117,725.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,116.73 : 277,620.05 = 78,499.11 : x
  2. Step 2: Convert to fraction form
    185,116.73/277,620.05 = 78,499.11/x
  3. Step 3: Cross multiply
    185,116.73x = 277,620.05 × 78,499.11
  4. Step 4: Simplify right side
    185,116.73x = 21,792,927,039.40
  5. Step 5: Solve for x
    x = 21,792,927,039.40/185,116.73
  6. Step 6: Final answer
    x = 117,725.33

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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.