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Finding the Fourth Proportional to 115,272.44, 159,077.18 and 64,971.44

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Solution

The fourth proportional to 115,272.44, 159,077.18 and 64,971.44 is: 89,661.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,272.44 : 159,077.18 = 64,971.44 : x
  2. Step 2: Convert to fraction form
    115,272.44/159,077.18 = 64,971.44/x
  3. Step 3: Cross multiply
    115,272.44x = 159,077.18 × 64,971.44
  4. Step 4: Simplify right side
    115,272.44x = 10,335,473,455.74
  5. Step 5: Solve for x
    x = 10,335,473,455.74/115,272.44
  6. Step 6: Final answer
    x = 89,661.27

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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.