Home / 102,786.77-141,793.79-68,796.68

Finding the Fourth Proportional to 102,786.77, 141,793.79 and 68,796.68

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Solution

The fourth proportional to 102,786.77, 141,793.79 and 68,796.68 is: 94,904.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,786.77 : 141,793.79 = 68,796.68 : x
  2. Step 2: Convert to fraction form
    102,786.77/141,793.79 = 68,796.68/x
  3. Step 3: Cross multiply
    102,786.77x = 141,793.79 × 68,796.68
  4. Step 4: Simplify right side
    102,786.77x = 9,754,940,943.66
  5. Step 5: Solve for x
    x = 9,754,940,943.66/102,786.77
  6. Step 6: Final answer
    x = 94,904.64

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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.