Home / 205,393.40-283,291.26-129,869

Finding the Fourth Proportional to 205,393.40, 283,291.26 and 129,869

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Solution

The fourth proportional to 205,393.40, 283,291.26 and 129,869 is: 179,123.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,393.40 : 283,291.26 = 129,869 : x
  2. Step 2: Convert to fraction form
    205,393.40/283,291.26 = 129,869/x
  3. Step 3: Cross multiply
    205,393.40x = 283,291.26 × 129,869
  4. Step 4: Simplify right side
    205,393.40x = 36,790,752,644.94
  5. Step 5: Solve for x
    x = 36,790,752,644.94/205,393.40
  6. Step 6: Final answer
    x = 179,123.34

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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.