Home / 111,539.43-153,949.82-63,819.09

Finding the Fourth Proportional to 111,539.43, 153,949.82 and 63,819.09

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Solution

The fourth proportional to 111,539.43, 153,949.82 and 63,819.09 is: 88,084.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,539.43 : 153,949.82 = 63,819.09 : x
  2. Step 2: Convert to fraction form
    111,539.43/153,949.82 = 63,819.09/x
  3. Step 3: Cross multiply
    111,539.43x = 153,949.82 × 63,819.09
  4. Step 4: Simplify right side
    111,539.43x = 9,824,937,098.97
  5. Step 5: Solve for x
    x = 9,824,937,098.97/111,539.43
  6. Step 6: Final answer
    x = 88,084.88

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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.