Home / 131,780.64-197,671.36-31,940.44

Finding the Fourth Proportional to 131,780.64, 197,671.36 and 31,940.44

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Solution

The fourth proportional to 131,780.64, 197,671.36 and 31,940.44 is: 47,910.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,780.64 : 197,671.36 = 31,940.44 : x
  2. Step 2: Convert to fraction form
    131,780.64/197,671.36 = 31,940.44/x
  3. Step 3: Cross multiply
    131,780.64x = 197,671.36 × 31,940.44
  4. Step 4: Simplify right side
    131,780.64x = 6,313,710,213.80
  5. Step 5: Solve for x
    x = 6,313,710,213.80/131,780.64
  6. Step 6: Final answer
    x = 47,910.76

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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.