Home / 188,877.32-283,212.39-74,909.69

Finding the Fourth Proportional to 188,877.32, 283,212.39 and 74,909.69

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Solution

The fourth proportional to 188,877.32, 283,212.39 and 74,909.69 is: 112,323.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,877.32 : 283,212.39 = 74,909.69 : x
  2. Step 2: Convert to fraction form
    188,877.32/283,212.39 = 74,909.69/x
  3. Step 3: Cross multiply
    188,877.32x = 283,212.39 × 74,909.69
  4. Step 4: Simplify right side
    188,877.32x = 21,215,352,339.06
  5. Step 5: Solve for x
    x = 21,215,352,339.06/188,877.32
  6. Step 6: Final answer
    x = 112,323.45

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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.