Home / 159,742.14-220,436.73-91,711.22

Finding the Fourth Proportional to 159,742.14, 220,436.73 and 91,711.22

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Solution

The fourth proportional to 159,742.14, 220,436.73 and 91,711.22 is: 126,557.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,742.14 : 220,436.73 = 91,711.22 : x
  2. Step 2: Convert to fraction form
    159,742.14/220,436.73 = 91,711.22/x
  3. Step 3: Cross multiply
    159,742.14x = 220,436.73 × 91,711.22
  4. Step 4: Simplify right side
    159,742.14x = 20,216,521,992.20
  5. Step 5: Solve for x
    x = 20,216,521,992.20/159,742.14
  6. Step 6: Final answer
    x = 126,557.23

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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.