Home / 127,919.88-191,880.30-39,173.04

Finding the Fourth Proportional to 127,919.88, 191,880.30 and 39,173.04

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Solution

The fourth proportional to 127,919.88, 191,880.30 and 39,173.04 is: 58,759.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,919.88 : 191,880.30 = 39,173.04 : x
  2. Step 2: Convert to fraction form
    127,919.88/191,880.30 = 39,173.04/x
  3. Step 3: Cross multiply
    127,919.88x = 191,880.30 × 39,173.04
  4. Step 4: Simplify right side
    127,919.88x = 7,516,534,667.11
  5. Step 5: Solve for x
    x = 7,516,534,667.11/127,919.88
  6. Step 6: Final answer
    x = 58,759.71

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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.