Home / 203,100.09-280,293.89-112,464.48

Finding the Fourth Proportional to 203,100.09, 280,293.89 and 112,464.48

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Solution

The fourth proportional to 203,100.09, 280,293.89 and 112,464.48 is: 155,209.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,100.09 : 280,293.89 = 112,464.48 : x
  2. Step 2: Convert to fraction form
    203,100.09/280,293.89 = 112,464.48/x
  3. Step 3: Cross multiply
    203,100.09x = 280,293.89 × 112,464.48
  4. Step 4: Simplify right side
    203,100.09x = 31,523,104,622.24
  5. Step 5: Solve for x
    x = 31,523,104,622.24/203,100.09
  6. Step 6: Final answer
    x = 155,209.71

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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.