Home / 115,181.18-158,962.94-64,198.56

Finding the Fourth Proportional to 115,181.18, 158,962.94 and 64,198.56

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Solution

The fourth proportional to 115,181.18, 158,962.94 and 64,198.56 is: 88,601.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,181.18 : 158,962.94 = 64,198.56 : x
  2. Step 2: Convert to fraction form
    115,181.18/158,962.94 = 64,198.56/x
  3. Step 3: Cross multiply
    115,181.18x = 158,962.94 × 64,198.56
  4. Step 4: Simplify right side
    115,181.18x = 10,205,191,841.37
  5. Step 5: Solve for x
    x = 10,205,191,841.37/115,181.18
  6. Step 6: Final answer
    x = 88,601.21

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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.