Home / 203,639.19-281,017.78-112,993.17

Finding the Fourth Proportional to 203,639.19, 281,017.78 and 112,993.17

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Solution

The fourth proportional to 203,639.19, 281,017.78 and 112,993.17 is: 155,928.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,639.19 : 281,017.78 = 112,993.17 : x
  2. Step 2: Convert to fraction form
    203,639.19/281,017.78 = 112,993.17/x
  3. Step 3: Cross multiply
    203,639.19x = 281,017.78 × 112,993.17
  4. Step 4: Simplify right side
    203,639.19x = 31,753,089,506.08
  5. Step 5: Solve for x
    x = 31,753,089,506.08/203,639.19
  6. Step 6: Final answer
    x = 155,928.19

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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.