Home / 127,338.50-191,007.75-39,786.50

Finding the Fourth Proportional to 127,338.50, 191,007.75 and 39,786.50

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Solution

The fourth proportional to 127,338.50, 191,007.75 and 39,786.50 is: 59,679.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,338.50 : 191,007.75 = 39,786.50 : x
  2. Step 2: Convert to fraction form
    127,338.50/191,007.75 = 39,786.50/x
  3. Step 3: Cross multiply
    127,338.50x = 191,007.75 × 39,786.50
  4. Step 4: Simplify right side
    127,338.50x = 7,599,529,845.38
  5. Step 5: Solve for x
    x = 7,599,529,845.38/127,338.50
  6. Step 6: Final answer
    x = 59,679.75

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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.