Home / 129,422.30-194,133.54-40,683.56

Finding the Fourth Proportional to 129,422.30, 194,133.54 and 40,683.56

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Solution

The fourth proportional to 129,422.30, 194,133.54 and 40,683.56 is: 61,025.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,422.30 : 194,133.54 = 40,683.56 : x
  2. Step 2: Convert to fraction form
    129,422.30/194,133.54 = 40,683.56/x
  3. Step 3: Cross multiply
    129,422.30x = 194,133.54 × 40,683.56
  4. Step 4: Simplify right side
    129,422.30x = 7,898,043,522.60
  5. Step 5: Solve for x
    x = 7,898,043,522.60/129,422.30
  6. Step 6: Final answer
    x = 61,025.37

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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.