Home / 185,234.20-277,916.10-80,128.60

Finding the Fourth Proportional to 185,234.20, 277,916.10 and 80,128.60

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Solution

The fourth proportional to 185,234.20, 277,916.10 and 80,128.60 is: 120,220.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,234.20 : 277,916.10 = 80,128.60 : x
  2. Step 2: Convert to fraction form
    185,234.20/277,916.10 = 80,128.60/x
  3. Step 3: Cross multiply
    185,234.20x = 277,916.10 × 80,128.60
  4. Step 4: Simplify right side
    185,234.20x = 22,269,028,010.46
  5. Step 5: Solve for x
    x = 22,269,028,010.46/185,234.20
  6. Step 6: Final answer
    x = 120,220.93

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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.