Home / 131,996.40-197,557.20-121,498.80

Finding the Fourth Proportional to 131,996.40, 197,557.20 and 121,498.80

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Solution

The fourth proportional to 131,996.40, 197,557.20 and 121,498.80 is: 181,845.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,996.40 : 197,557.20 = 121,498.80 : x
  2. Step 2: Convert to fraction form
    131,996.40/197,557.20 = 121,498.80/x
  3. Step 3: Cross multiply
    131,996.40x = 197,557.20 × 121,498.80
  4. Step 4: Simplify right side
    131,996.40x = 24,002,962,731.36
  5. Step 5: Solve for x
    x = 24,002,962,731.36/131,996.40
  6. Step 6: Final answer
    x = 181,845.59

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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.