Home / 188,531.56-260,171.22-103,647.88

Finding the Fourth Proportional to 188,531.56, 260,171.22 and 103,647.88

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Solution

The fourth proportional to 188,531.56, 260,171.22 and 103,647.88 is: 143,032.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,531.56 : 260,171.22 = 103,647.88 : x
  2. Step 2: Convert to fraction form
    188,531.56/260,171.22 = 103,647.88/x
  3. Step 3: Cross multiply
    188,531.56x = 260,171.22 × 103,647.88
  4. Step 4: Simplify right side
    188,531.56x = 26,966,195,390.01
  5. Step 5: Solve for x
    x = 26,966,195,390.01/188,531.56
  6. Step 6: Final answer
    x = 143,032.79

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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.