Home / 209,587.26-289,185.57-124,687.74

Finding the Fourth Proportional to 209,587.26, 289,185.57 and 124,687.74

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Solution

The fourth proportional to 209,587.26, 289,185.57 and 124,687.74 is: 172,042.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,587.26 : 289,185.57 = 124,687.74 : x
  2. Step 2: Convert to fraction form
    209,587.26/289,185.57 = 124,687.74/x
  3. Step 3: Cross multiply
    209,587.26x = 289,185.57 × 124,687.74
  4. Step 4: Simplify right side
    209,587.26x = 36,057,895,163.91
  5. Step 5: Solve for x
    x = 36,057,895,163.91/209,587.26
  6. Step 6: Final answer
    x = 172,042.40

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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.