Home / 188,531.70-260,167.11-103,648.14

Finding the Fourth Proportional to 188,531.70, 260,167.11 and 103,648.14

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Solution

The fourth proportional to 188,531.70, 260,167.11 and 103,648.14 is: 143,030.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,531.70 : 260,167.11 = 103,648.14 : x
  2. Step 2: Convert to fraction form
    188,531.70/260,167.11 = 103,648.14/x
  3. Step 3: Cross multiply
    188,531.70x = 260,167.11 × 103,648.14
  4. Step 4: Simplify right side
    188,531.70x = 26,965,837,040.68
  5. Step 5: Solve for x
    x = 26,965,837,040.68/188,531.70
  6. Step 6: Final answer
    x = 143,030.78

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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.