Home / 128,261.00-192,287.79-53,437.46

Finding the Fourth Proportional to 128,261.00, 192,287.79 and 53,437.46

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Solution

The fourth proportional to 128,261.00, 192,287.79 and 53,437.46 is: 80,112.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,261.00 : 192,287.79 = 53,437.46 : x
  2. Step 2: Convert to fraction form
    128,261.00/192,287.79 = 53,437.46/x
  3. Step 3: Cross multiply
    128,261.00x = 192,287.79 × 53,437.46
  4. Step 4: Simplify right side
    128,261.00x = 10,275,370,125.17
  5. Step 5: Solve for x
    x = 10,275,370,125.17/128,261.00
  6. Step 6: Final answer
    x = 80,112.97

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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.