Home / 231,609.40-347,529.30-91,372.60

Finding the Fourth Proportional to 231,609.40, 347,529.30 and 91,372.60

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Solution

The fourth proportional to 231,609.40, 347,529.30 and 91,372.60 is: 137,104.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,609.40 : 347,529.30 = 91,372.60 : x
  2. Step 2: Convert to fraction form
    231,609.40/347,529.30 = 91,372.60/x
  3. Step 3: Cross multiply
    231,609.40x = 347,529.30 × 91,372.60
  4. Step 4: Simplify right side
    231,609.40x = 31,754,655,717.18
  5. Step 5: Solve for x
    x = 31,754,655,717.18/231,609.40
  6. Step 6: Final answer
    x = 137,104.35

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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.