Home / 231,703.40-347,555.10-82,112.60

Finding the Fourth Proportional to 231,703.40, 347,555.10 and 82,112.60

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Solution

The fourth proportional to 231,703.40, 347,555.10 and 82,112.60 is: 123,168.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,703.40 : 347,555.10 = 82,112.60 : x
  2. Step 2: Convert to fraction form
    231,703.40/347,555.10 = 82,112.60/x
  3. Step 3: Cross multiply
    231,703.40x = 347,555.10 × 82,112.60
  4. Step 4: Simplify right side
    231,703.40x = 28,538,652,904.26
  5. Step 5: Solve for x
    x = 28,538,652,904.26/231,703.40
  6. Step 6: Final answer
    x = 123,168.90

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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.