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Finding the Fourth Proportional to 203,885.76, 281,364.12 and 118,986.24

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Solution

The fourth proportional to 203,885.76, 281,364.12 and 118,986.24 is: 164,202.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,885.76 : 281,364.12 = 118,986.24 : x
  2. Step 2: Convert to fraction form
    203,885.76/281,364.12 = 118,986.24/x
  3. Step 3: Cross multiply
    203,885.76x = 281,364.12 × 118,986.24
  4. Step 4: Simplify right side
    203,885.76x = 33,478,458,709.71
  5. Step 5: Solve for x
    x = 33,478,458,709.71/203,885.76
  6. Step 6: Final answer
    x = 164,202.04

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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.