Home / 203,485.26-280,824.05-112,849.90

Finding the Fourth Proportional to 203,485.26, 280,824.05 and 112,849.90

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Solution

The fourth proportional to 203,485.26, 280,824.05 and 112,849.90 is: 155,740.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,485.26 : 280,824.05 = 112,849.90 : x
  2. Step 2: Convert to fraction form
    203,485.26/280,824.05 = 112,849.90/x
  3. Step 3: Cross multiply
    203,485.26x = 280,824.05 × 112,849.90
  4. Step 4: Simplify right side
    203,485.26x = 31,690,965,960.10
  5. Step 5: Solve for x
    x = 31,690,965,960.10/203,485.26
  6. Step 6: Final answer
    x = 155,740.84

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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.