Home / 131,723.40-197,649.90-100,122.60

Finding the Fourth Proportional to 131,723.40, 197,649.90 and 100,122.60

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Solution

The fourth proportional to 131,723.40, 197,649.90 and 100,122.60 is: 150,233.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,723.40 : 197,649.90 = 100,122.60 : x
  2. Step 2: Convert to fraction form
    131,723.40/197,649.90 = 100,122.60/x
  3. Step 3: Cross multiply
    131,723.40x = 197,649.90 × 100,122.60
  4. Step 4: Simplify right side
    131,723.40x = 19,789,221,877.74
  5. Step 5: Solve for x
    x = 19,789,221,877.74/131,723.40
  6. Step 6: Final answer
    x = 150,233.15

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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.