Home / 106,538.64-159,906.12-53,985.36

Finding the Fourth Proportional to 106,538.64, 159,906.12 and 53,985.36

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Solution

The fourth proportional to 106,538.64, 159,906.12 and 53,985.36 is: 81,027.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,538.64 : 159,906.12 = 53,985.36 : x
  2. Step 2: Convert to fraction form
    106,538.64/159,906.12 = 53,985.36/x
  3. Step 3: Cross multiply
    106,538.64x = 159,906.12 × 53,985.36
  4. Step 4: Simplify right side
    106,538.64x = 8,632,589,454.40
  5. Step 5: Solve for x
    x = 8,632,589,454.40/106,538.64
  6. Step 6: Final answer
    x = 81,027.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.