Home / 209,816.80-289,548.48-124,937.44

Finding the Fourth Proportional to 209,816.80, 289,548.48 and 124,937.44

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Solution

The fourth proportional to 209,816.80, 289,548.48 and 124,937.44 is: 172,414.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,816.80 : 289,548.48 = 124,937.44 : x
  2. Step 2: Convert to fraction form
    209,816.80/289,548.48 = 124,937.44/x
  3. Step 3: Cross multiply
    209,816.80x = 289,548.48 × 124,937.44
  4. Step 4: Simplify right side
    209,816.80x = 36,175,445,847.09
  5. Step 5: Solve for x
    x = 36,175,445,847.09/209,816.80
  6. Step 6: Final answer
    x = 172,414.44

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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.