Home / 231,980.96-347,886.08-80,139.41

Finding the Fourth Proportional to 231,980.96, 347,886.08 and 80,139.41

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Solution

The fourth proportional to 231,980.96, 347,886.08 and 80,139.41 is: 120,179.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,980.96 : 347,886.08 = 80,139.41 : x
  2. Step 2: Convert to fraction form
    231,980.96/347,886.08 = 80,139.41/x
  3. Step 3: Cross multiply
    231,980.96x = 347,886.08 × 80,139.41
  4. Step 4: Simplify right side
    231,980.96x = 27,879,385,198.41
  5. Step 5: Solve for x
    x = 27,879,385,198.41/231,980.96
  6. Step 6: Final answer
    x = 120,179.63

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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.