Home / 208,414.05-287,619.43-126,718.84

Finding the Fourth Proportional to 208,414.05, 287,619.43 and 126,718.84

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Solution

The fourth proportional to 208,414.05, 287,619.43 and 126,718.84 is: 174,876.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,414.05 : 287,619.43 = 126,718.84 : x
  2. Step 2: Convert to fraction form
    208,414.05/287,619.43 = 126,718.84/x
  3. Step 3: Cross multiply
    208,414.05x = 287,619.43 × 126,718.84
  4. Step 4: Simplify right side
    208,414.05x = 36,446,800,358.85
  5. Step 5: Solve for x
    x = 36,446,800,358.85/208,414.05
  6. Step 6: Final answer
    x = 174,876.89

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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.