Home / 115,968.73-158,837.72-109,159.87

Finding the Fourth Proportional to 115,968.73, 158,837.72 and 109,159.87

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Solution

The fourth proportional to 115,968.73, 158,837.72 and 109,159.87 is: 149,511.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,968.73 : 158,837.72 = 109,159.87 : x
  2. Step 2: Convert to fraction form
    115,968.73/158,837.72 = 109,159.87/x
  3. Step 3: Cross multiply
    115,968.73x = 158,837.72 × 109,159.87
  4. Step 4: Simplify right side
    115,968.73x = 17,338,704,866.30
  5. Step 5: Solve for x
    x = 17,338,704,866.30/115,968.73
  6. Step 6: Final answer
    x = 149,511.90

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.