Home / 127,943.60-192,145.80-123,796.40

Finding the Fourth Proportional to 127,943.60, 192,145.80 and 123,796.40

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Solution

The fourth proportional to 127,943.60, 192,145.80 and 123,796.40 is: 185,917.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,943.60 : 192,145.80 = 123,796.40 : x
  2. Step 2: Convert to fraction form
    127,943.60/192,145.80 = 123,796.40/x
  3. Step 3: Cross multiply
    127,943.60x = 192,145.80 × 123,796.40
  4. Step 4: Simplify right side
    127,943.60x = 23,786,958,315.12
  5. Step 5: Solve for x
    x = 23,786,958,315.12/127,943.60
  6. Step 6: Final answer
    x = 185,917.53

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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.