Home / 101,727.82-140,378.78-56,403.16

Finding the Fourth Proportional to 101,727.82, 140,378.78 and 56,403.16

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Solution

The fourth proportional to 101,727.82, 140,378.78 and 56,403.16 is: 77,833.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,727.82 : 140,378.78 = 56,403.16 : x
  2. Step 2: Convert to fraction form
    101,727.82/140,378.78 = 56,403.16/x
  3. Step 3: Cross multiply
    101,727.82x = 140,378.78 × 56,403.16
  4. Step 4: Simplify right side
    101,727.82x = 7,917,806,788.94
  5. Step 5: Solve for x
    x = 7,917,806,788.94/101,727.82
  6. Step 6: Final answer
    x = 77,833.25

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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.