Home / 188,298.09-259,867.31-103,432.77

Finding the Fourth Proportional to 188,298.09, 259,867.31 and 103,432.77

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Solution

The fourth proportional to 188,298.09, 259,867.31 and 103,432.77 is: 142,745.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,298.09 : 259,867.31 = 103,432.77 : x
  2. Step 2: Convert to fraction form
    188,298.09/259,867.31 = 103,432.77/x
  3. Step 3: Cross multiply
    188,298.09x = 259,867.31 × 103,432.77
  4. Step 4: Simplify right side
    188,298.09x = 26,878,795,188.58
  5. Step 5: Solve for x
    x = 26,878,795,188.58/188,298.09
  6. Step 6: Final answer
    x = 142,745.98

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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.