Home / 127,928.60-191,720.10-113,067.80

Finding the Fourth Proportional to 127,928.60, 191,720.10 and 113,067.80

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Solution

The fourth proportional to 127,928.60, 191,720.10 and 113,067.80 is: 169,448.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,928.60 : 191,720.10 = 113,067.80 : x
  2. Step 2: Convert to fraction form
    127,928.60/191,720.10 = 113,067.80/x
  3. Step 3: Cross multiply
    127,928.60x = 191,720.10 × 113,067.80
  4. Step 4: Simplify right side
    127,928.60x = 21,677,369,922.78
  5. Step 5: Solve for x
    x = 21,677,369,922.78/127,928.60
  6. Step 6: Final answer
    x = 169,448.97

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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.