Home / 231,706.20-347,559.30-81,945.30

Finding the Fourth Proportional to 231,706.20, 347,559.30 and 81,945.30

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Solution

The fourth proportional to 231,706.20, 347,559.30 and 81,945.30 is: 122,917.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,706.20 : 347,559.30 = 81,945.30 : x
  2. Step 2: Convert to fraction form
    231,706.20/347,559.30 = 81,945.30/x
  3. Step 3: Cross multiply
    231,706.20x = 347,559.30 × 81,945.30
  4. Step 4: Simplify right side
    231,706.20x = 28,480,851,106.29
  5. Step 5: Solve for x
    x = 28,480,851,106.29/231,706.20
  6. Step 6: Final answer
    x = 122,917.95

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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.