Home / 188,504.12-260,129.10-103,620.58

Finding the Fourth Proportional to 188,504.12, 260,129.10 and 103,620.58

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Solution

The fourth proportional to 188,504.12, 260,129.10 and 103,620.58 is: 142,992.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,504.12 : 260,129.10 = 103,620.58 : x
  2. Step 2: Convert to fraction form
    188,504.12/260,129.10 = 103,620.58/x
  3. Step 3: Cross multiply
    188,504.12x = 260,129.10 × 103,620.58
  4. Step 4: Simplify right side
    188,504.12x = 26,954,727,955.13
  5. Step 5: Solve for x
    x = 26,954,727,955.13/188,504.12
  6. Step 6: Final answer
    x = 142,992.78

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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.