Home / 188,015.25-259,461.05-103,132.52

Finding the Fourth Proportional to 188,015.25, 259,461.05 and 103,132.52

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Solution

The fourth proportional to 188,015.25, 259,461.05 and 103,132.52 is: 142,322.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,015.25 : 259,461.05 = 103,132.52 : x
  2. Step 2: Convert to fraction form
    188,015.25/259,461.05 = 103,132.52/x
  3. Step 3: Cross multiply
    188,015.25x = 259,461.05 × 103,132.52
  4. Step 4: Simplify right side
    188,015.25x = 26,758,870,115.38
  5. Step 5: Solve for x
    x = 26,758,870,115.38/188,015.25
  6. Step 6: Final answer
    x = 142,322.87

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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.