Home / 105,121.75-145,067.39-59,799.61

Finding the Fourth Proportional to 105,121.75, 145,067.39 and 59,799.61

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Solution

The fourth proportional to 105,121.75, 145,067.39 and 59,799.61 is: 82,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,121.75 : 145,067.39 = 59,799.61 : x
  2. Step 2: Convert to fraction form
    105,121.75/145,067.39 = 59,799.61/x
  3. Step 3: Cross multiply
    105,121.75x = 145,067.39 × 59,799.61
  4. Step 4: Simplify right side
    105,121.75x = 8,674,972,769.88
  5. Step 5: Solve for x
    x = 8,674,972,769.88/105,121.75
  6. Step 6: Final answer
    x = 82,523.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.