Home / 159,540.24-220,164.56-86,942.96

Finding the Fourth Proportional to 159,540.24, 220,164.56 and 86,942.96

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Solution

The fourth proportional to 159,540.24, 220,164.56 and 86,942.96 is: 119,980.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,540.24 : 220,164.56 = 86,942.96 : x
  2. Step 2: Convert to fraction form
    159,540.24/220,164.56 = 86,942.96/x
  3. Step 3: Cross multiply
    159,540.24x = 220,164.56 × 86,942.96
  4. Step 4: Simplify right side
    159,540.24x = 19,141,758,533.50
  5. Step 5: Solve for x
    x = 19,141,758,533.50/159,540.24
  6. Step 6: Final answer
    x = 119,980.76

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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.