Home / 129,940.26-194,910.40-31,444.26

Finding the Fourth Proportional to 129,940.26, 194,910.40 and 31,444.26

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Solution

The fourth proportional to 129,940.26, 194,910.40 and 31,444.26 is: 47,166.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,940.26 : 194,910.40 = 31,444.26 : x
  2. Step 2: Convert to fraction form
    129,940.26/194,910.40 = 31,444.26/x
  3. Step 3: Cross multiply
    129,940.26x = 194,910.40 × 31,444.26
  4. Step 4: Simplify right side
    129,940.26x = 6,128,813,294.30
  5. Step 5: Solve for x
    x = 6,128,813,294.30/129,940.26
  6. Step 6: Final answer
    x = 47,166.39

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1.5x scale

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.