Home / 127,940.87-191,953.78-39,195.25

Finding the Fourth Proportional to 127,940.87, 191,953.78 and 39,195.25

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Solution

The fourth proportional to 127,940.87, 191,953.78 and 39,195.25 is: 58,805.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,940.87 : 191,953.78 = 39,195.25 : x
  2. Step 2: Convert to fraction form
    127,940.87/191,953.78 = 39,195.25/x
  3. Step 3: Cross multiply
    127,940.87x = 191,953.78 × 39,195.25
  4. Step 4: Simplify right side
    127,940.87x = 7,523,675,817.67
  5. Step 5: Solve for x
    x = 7,523,675,817.67/127,940.87
  6. Step 6: Final answer
    x = 58,805.88

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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.