Home / 188,109.39-259,580.61-103,219.77

Finding the Fourth Proportional to 188,109.39, 259,580.61 and 103,219.77

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Solution

The fourth proportional to 188,109.39, 259,580.61 and 103,219.77 is: 142,437.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,109.39 : 259,580.61 = 103,219.77 : x
  2. Step 2: Convert to fraction form
    188,109.39/259,580.61 = 103,219.77/x
  3. Step 3: Cross multiply
    188,109.39x = 259,580.61 × 103,219.77
  4. Step 4: Simplify right side
    188,109.39x = 26,793,850,860.66
  5. Step 5: Solve for x
    x = 26,793,850,860.66/188,109.39
  6. Step 6: Final answer
    x = 142,437.60

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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.