Home / 159,455.36-220,049.52-91,475.30

Finding the Fourth Proportional to 159,455.36, 220,049.52 and 91,475.30

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Solution

The fourth proportional to 159,455.36, 220,049.52 and 91,475.30 is: 126,236.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,455.36 : 220,049.52 = 91,475.30 : x
  2. Step 2: Convert to fraction form
    159,455.36/220,049.52 = 91,475.30/x
  3. Step 3: Cross multiply
    159,455.36x = 220,049.52 × 91,475.30
  4. Step 4: Simplify right side
    159,455.36x = 20,129,095,856.86
  5. Step 5: Solve for x
    x = 20,129,095,856.86/159,455.36
  6. Step 6: Final answer
    x = 126,236.56

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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.