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Finding the Fourth Proportional to 115,193.82, 158,948.22 and 64,195.38

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Solution

The fourth proportional to 115,193.82, 158,948.22 and 64,195.38 is: 88,578.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,193.82 : 158,948.22 = 64,195.38 : x
  2. Step 2: Convert to fraction form
    115,193.82/158,948.22 = 64,195.38/x
  3. Step 3: Cross multiply
    115,193.82x = 158,948.22 × 64,195.38
  4. Step 4: Simplify right side
    115,193.82x = 10,203,741,383.22
  5. Step 5: Solve for x
    x = 10,203,741,383.22/115,193.82
  6. Step 6: Final answer
    x = 88,578.90

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1.5x scale

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.