Home / 209,665.38-289,293.09-124,765.86

Finding the Fourth Proportional to 209,665.38, 289,293.09 and 124,765.86

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Solution

The fourth proportional to 209,665.38, 289,293.09 and 124,765.86 is: 172,150.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,665.38 : 289,293.09 = 124,765.86 : x
  2. Step 2: Convert to fraction form
    209,665.38/289,293.09 = 124,765.86/x
  3. Step 3: Cross multiply
    209,665.38x = 289,293.09 × 124,765.86
  4. Step 4: Simplify right side
    209,665.38x = 36,093,901,165.91
  5. Step 5: Solve for x
    x = 36,093,901,165.91/209,665.38
  6. Step 6: Final answer
    x = 172,150.03

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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.