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Finding the Fourth Proportional to 115,027.88, 158,742 and 62,643.38

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Solution

The fourth proportional to 115,027.88, 158,742 and 62,643.38 is: 86,449.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,027.88 : 158,742 = 62,643.38 : x
  2. Step 2: Convert to fraction form
    115,027.88/158,742 = 62,643.38/x
  3. Step 3: Cross multiply
    115,027.88x = 158,742 × 62,643.38
  4. Step 4: Simplify right side
    115,027.88x = 9,944,134,634.25
  5. Step 5: Solve for x
    x = 9,944,134,634.25/115,027.88
  6. Step 6: Final answer
    x = 86,449.78

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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.