Home / 203,628.57-281,003.12-112,982.58

Finding the Fourth Proportional to 203,628.57, 281,003.12 and 112,982.58

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Solution

The fourth proportional to 203,628.57, 281,003.12 and 112,982.58 is: 155,913.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,628.57 : 281,003.12 = 112,982.58 : x
  2. Step 2: Convert to fraction form
    203,628.57/281,003.12 = 112,982.58/x
  3. Step 3: Cross multiply
    203,628.57x = 281,003.12 × 112,982.58
  4. Step 4: Simplify right side
    203,628.57x = 31,748,456,920.74
  5. Step 5: Solve for x
    x = 31,748,456,920.74/203,628.57
  6. Step 6: Final answer
    x = 155,913.57

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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.