Home / 173,923.20-261,057.60-85,276.80

Finding the Fourth Proportional to 173,923.20, 261,057.60 and 85,276.80

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Solution

The fourth proportional to 173,923.20, 261,057.60 and 85,276.80 is: 127,999.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,923.20 : 261,057.60 = 85,276.80 : x
  2. Step 2: Convert to fraction form
    173,923.20/261,057.60 = 85,276.80/x
  3. Step 3: Cross multiply
    173,923.20x = 261,057.60 × 85,276.80
  4. Step 4: Simplify right side
    173,923.20x = 22,262,156,743.68
  5. Step 5: Solve for x
    x = 22,262,156,743.68/173,923.20
  6. Step 6: Final answer
    x = 127,999.93

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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.