Home / 209,714.73-289,406.28-114,221.43

Finding the Fourth Proportional to 209,714.73, 289,406.28 and 114,221.43

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Solution

The fourth proportional to 209,714.73, 289,406.28 and 114,221.43 is: 157,625.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,714.73 : 289,406.28 = 114,221.43 : x
  2. Step 2: Convert to fraction form
    209,714.73/289,406.28 = 114,221.43/x
  3. Step 3: Cross multiply
    209,714.73x = 289,406.28 × 114,221.43
  4. Step 4: Simplify right side
    209,714.73x = 33,056,399,152.58
  5. Step 5: Solve for x
    x = 33,056,399,152.58/209,714.73
  6. Step 6: Final answer
    x = 157,625.55

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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.