Home / 131,396.49-197,091.97-42,649.85

Finding the Fourth Proportional to 131,396.49, 197,091.97 and 42,649.85

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Solution

The fourth proportional to 131,396.49, 197,091.97 and 42,649.85 is: 63,973.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,396.49 : 197,091.97 = 42,649.85 : x
  2. Step 2: Convert to fraction form
    131,396.49/197,091.97 = 42,649.85/x
  3. Step 3: Cross multiply
    131,396.49x = 197,091.97 × 42,649.85
  4. Step 4: Simplify right side
    131,396.49x = 8,405,943,342.81
  5. Step 5: Solve for x
    x = 8,405,943,342.81/131,396.49
  6. Step 6: Final answer
    x = 63,973.88

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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.