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Finding the Fourth Proportional to 115,858, 159,884.04 and 65,557.04

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Solution

The fourth proportional to 115,858, 159,884.04 and 65,557.04 is: 90,468.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,858 : 159,884.04 = 65,557.04 : x
  2. Step 2: Convert to fraction form
    115,858/159,884.04 = 65,557.04/x
  3. Step 3: Cross multiply
    115,858x = 159,884.04 × 65,557.04
  4. Step 4: Simplify right side
    115,858x = 10,481,524,405.64
  5. Step 5: Solve for x
    x = 10,481,524,405.64/115,858
  6. Step 6: Final answer
    x = 90,468.72

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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.