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Finding the Fourth Proportional to 135,391.56, 203,086.79 and 55,466.63

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Solution

The fourth proportional to 135,391.56, 203,086.79 and 55,466.63 is: 83,199.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,391.56 : 203,086.79 = 55,466.63 : x
  2. Step 2: Convert to fraction form
    135,391.56/203,086.79 = 55,466.63/x
  3. Step 3: Cross multiply
    135,391.56x = 203,086.79 × 55,466.63
  4. Step 4: Simplify right side
    135,391.56x = 11,264,539,838.82
  5. Step 5: Solve for x
    x = 11,264,539,838.82/135,391.56
  6. Step 6: Final answer
    x = 83,199.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.