Home / 188,811.78-283,218.40-76,494.12

Finding the Fourth Proportional to 188,811.78, 283,218.40 and 76,494.12

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Solution

The fourth proportional to 188,811.78, 283,218.40 and 76,494.12 is: 114,741.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,811.78 : 283,218.40 = 76,494.12 : x
  2. Step 2: Convert to fraction form
    188,811.78/283,218.40 = 76,494.12/x
  3. Step 3: Cross multiply
    188,811.78x = 283,218.40 × 76,494.12
  4. Step 4: Simplify right side
    188,811.78x = 21,664,542,275.81
  5. Step 5: Solve for x
    x = 21,664,542,275.81/188,811.78
  6. Step 6: Final answer
    x = 114,741.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.