Home / 127,546.88-191,320-60,784.64

Finding the Fourth Proportional to 127,546.88, 191,320 and 60,784.64

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Solution

The fourth proportional to 127,546.88, 191,320 and 60,784.64 is: 91,176.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,546.88 : 191,320 = 60,784.64 : x
  2. Step 2: Convert to fraction form
    127,546.88/191,320 = 60,784.64/x
  3. Step 3: Cross multiply
    127,546.88x = 191,320 × 60,784.64
  4. Step 4: Simplify right side
    127,546.88x = 11,629,317,324.80
  5. Step 5: Solve for x
    x = 11,629,317,324.80/127,546.88
  6. Step 6: Final answer
    x = 91,176.81

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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.