Home / 202,619.56-279,620.58-111,981.40

Finding the Fourth Proportional to 202,619.56, 279,620.58 and 111,981.40

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Solution

The fourth proportional to 202,619.56, 279,620.58 and 111,981.40 is: 154,537.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,619.56 : 279,620.58 = 111,981.40 : x
  2. Step 2: Convert to fraction form
    202,619.56/279,620.58 = 111,981.40/x
  3. Step 3: Cross multiply
    202,619.56x = 279,620.58 × 111,981.40
  4. Step 4: Simplify right side
    202,619.56x = 31,312,304,017.21
  5. Step 5: Solve for x
    x = 31,312,304,017.21/202,619.56
  6. Step 6: Final answer
    x = 154,537.42

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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.