Home / 188,103.60-259,575.03-103,215.20

Finding the Fourth Proportional to 188,103.60, 259,575.03 and 103,215.20

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Solution

The fourth proportional to 188,103.60, 259,575.03 and 103,215.20 is: 142,432.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,103.60 : 259,575.03 = 103,215.20 : x
  2. Step 2: Convert to fraction form
    188,103.60/259,575.03 = 103,215.20/x
  3. Step 3: Cross multiply
    188,103.60x = 259,575.03 × 103,215.20
  4. Step 4: Simplify right side
    188,103.60x = 26,792,087,338.58
  5. Step 5: Solve for x
    x = 26,792,087,338.58/188,103.60
  6. Step 6: Final answer
    x = 142,432.61

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1.5x scale

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.