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Finding the Fourth Proportional to 115,323.62, 159,147.79 and 64,341

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Solution

The fourth proportional to 115,323.62, 159,147.79 and 64,341 is: 88,791.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,323.62 : 159,147.79 = 64,341 : x
  2. Step 2: Convert to fraction form
    115,323.62/159,147.79 = 64,341/x
  3. Step 3: Cross multiply
    115,323.62x = 159,147.79 × 64,341
  4. Step 4: Simplify right side
    115,323.62x = 10,239,727,795.54
  5. Step 5: Solve for x
    x = 10,239,727,795.54/115,323.62
  6. Step 6: Final answer
    x = 88,791.25

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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.