Home / 231,728.48-347,599.20-81,947.60

Finding the Fourth Proportional to 231,728.48, 347,599.20 and 81,947.60

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Solution

The fourth proportional to 231,728.48, 347,599.20 and 81,947.60 is: 122,923.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,728.48 : 347,599.20 = 81,947.60 : x
  2. Step 2: Convert to fraction form
    231,728.48/347,599.20 = 81,947.60/x
  3. Step 3: Cross multiply
    231,728.48x = 347,599.20 × 81,947.60
  4. Step 4: Simplify right side
    231,728.48x = 28,484,920,201.92
  5. Step 5: Solve for x
    x = 28,484,920,201.92/231,728.48
  6. Step 6: Final answer
    x = 122,923.69

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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.