Home / 173,899.20-261,021.60-85,252.80

Finding the Fourth Proportional to 173,899.20, 261,021.60 and 85,252.80

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Solution

The fourth proportional to 173,899.20, 261,021.60 and 85,252.80 is: 127,963.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,899.20 : 261,021.60 = 85,252.80 : x
  2. Step 2: Convert to fraction form
    173,899.20/261,021.60 = 85,252.80/x
  3. Step 3: Cross multiply
    173,899.20x = 261,021.60 × 85,252.80
  4. Step 4: Simplify right side
    173,899.20x = 22,252,822,260.48
  5. Step 5: Solve for x
    x = 22,252,822,260.48/173,899.20
  6. Step 6: Final answer
    x = 127,963.91

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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.