Home / 115,108.27-158,848.97-64,121.60

Finding the Fourth Proportional to 115,108.27, 158,848.97 and 64,121.60

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Solution

The fourth proportional to 115,108.27, 158,848.97 and 64,121.60 is: 88,487.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,108.27 : 158,848.97 = 64,121.60 : x
  2. Step 2: Convert to fraction form
    115,108.27/158,848.97 = 64,121.60/x
  3. Step 3: Cross multiply
    115,108.27x = 158,848.97 × 64,121.60
  4. Step 4: Simplify right side
    115,108.27x = 10,185,650,191.27
  5. Step 5: Solve for x
    x = 10,185,650,191.27/115,108.27
  6. Step 6: Final answer
    x = 88,487.56

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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.