Home / 203,101.09-280,295.27-112,465.48

Finding the Fourth Proportional to 203,101.09, 280,295.27 and 112,465.48

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Solution

The fourth proportional to 203,101.09, 280,295.27 and 112,465.48 is: 155,211.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,101.09 : 280,295.27 = 112,465.48 : x
  2. Step 2: Convert to fraction form
    203,101.09/280,295.27 = 112,465.48/x
  3. Step 3: Cross multiply
    203,101.09x = 280,295.27 × 112,465.48
  4. Step 4: Simplify right side
    203,101.09x = 31,523,542,082.28
  5. Step 5: Solve for x
    x = 31,523,542,082.28/203,101.09
  6. Step 6: Final answer
    x = 155,211.09

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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.