Home / 188,719.58-260,440.19-108,162.65

Finding the Fourth Proportional to 188,719.58, 260,440.19 and 108,162.65

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Solution

The fourth proportional to 188,719.58, 260,440.19 and 108,162.65 is: 149,268.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,719.58 : 260,440.19 = 108,162.65 : x
  2. Step 2: Convert to fraction form
    188,719.58/260,440.19 = 108,162.65/x
  3. Step 3: Cross multiply
    188,719.58x = 260,440.19 × 108,162.65
  4. Step 4: Simplify right side
    188,719.58x = 28,169,902,038.41
  5. Step 5: Solve for x
    x = 28,169,902,038.41/188,719.58
  6. Step 6: Final answer
    x = 149,268.57

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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.