Home / 220,175.10-303,860.43-124,698.78

Finding the Fourth Proportional to 220,175.10, 303,860.43 and 124,698.78

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Solution

The fourth proportional to 220,175.10, 303,860.43 and 124,698.78 is: 172,094.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,175.10 : 303,860.43 = 124,698.78 : x
  2. Step 2: Convert to fraction form
    220,175.10/303,860.43 = 124,698.78/x
  3. Step 3: Cross multiply
    220,175.10x = 303,860.43 × 124,698.78
  4. Step 4: Simplify right side
    220,175.10x = 37,891,024,911.28
  5. Step 5: Solve for x
    x = 37,891,024,911.28/220,175.10
  6. Step 6: Final answer
    x = 172,094.96

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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.