Home / 203,117.73-280,299.03-112,471.74

Finding the Fourth Proportional to 203,117.73, 280,299.03 and 112,471.74

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Solution

The fourth proportional to 203,117.73, 280,299.03 and 112,471.74 is: 155,209.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,117.73 : 280,299.03 = 112,471.74 : x
  2. Step 2: Convert to fraction form
    203,117.73/280,299.03 = 112,471.74/x
  3. Step 3: Cross multiply
    203,117.73x = 280,299.03 × 112,471.74
  4. Step 4: Simplify right side
    203,117.73x = 31,525,719,202.64
  5. Step 5: Solve for x
    x = 31,525,719,202.64/203,117.73
  6. Step 6: Final answer
    x = 155,209.10

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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.