Home / 188,340.19-259,909.64-103,462.72

Finding the Fourth Proportional to 188,340.19, 259,909.64 and 103,462.72

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Solution

The fourth proportional to 188,340.19, 259,909.64 and 103,462.72 is: 142,778.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,340.19 : 259,909.64 = 103,462.72 : x
  2. Step 2: Convert to fraction form
    188,340.19/259,909.64 = 103,462.72/x
  3. Step 3: Cross multiply
    188,340.19x = 259,909.64 × 103,462.72
  4. Step 4: Simplify right side
    188,340.19x = 26,890,958,308.62
  5. Step 5: Solve for x
    x = 26,890,958,308.62/188,340.19
  6. Step 6: Final answer
    x = 142,778.65

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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.