Home / 203,730.12-281,133.49-113,078.95

Finding the Fourth Proportional to 203,730.12, 281,133.49 and 113,078.95

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Solution

The fourth proportional to 203,730.12, 281,133.49 and 113,078.95 is: 156,041.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,730.12 : 281,133.49 = 113,078.95 : x
  2. Step 2: Convert to fraction form
    203,730.12/281,133.49 = 113,078.95/x
  3. Step 3: Cross multiply
    203,730.12x = 281,133.49 × 113,078.95
  4. Step 4: Simplify right side
    203,730.12x = 31,790,280,984.94
  5. Step 5: Solve for x
    x = 31,790,280,984.94/203,730.12
  6. Step 6: Final answer
    x = 156,041.14

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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.