Home / 159,787.44-220,499.28-91,756.56

Finding the Fourth Proportional to 159,787.44, 220,499.28 and 91,756.56

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Solution

The fourth proportional to 159,787.44, 220,499.28 and 91,756.56 is: 126,619.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,787.44 : 220,499.28 = 91,756.56 : x
  2. Step 2: Convert to fraction form
    159,787.44/220,499.28 = 91,756.56/x
  3. Step 3: Cross multiply
    159,787.44x = 220,499.28 × 91,756.56
  4. Step 4: Simplify right side
    159,787.44x = 20,232,255,415.28
  5. Step 5: Solve for x
    x = 20,232,255,415.28/159,787.44
  6. Step 6: Final answer
    x = 126,619.81

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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.