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Finding the Fourth Proportional to 135,374, 203,132.04 and 55,471.28

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Solution

The fourth proportional to 135,374, 203,132.04 and 55,471.28 is: 83,236.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,374 : 203,132.04 = 55,471.28 : x
  2. Step 2: Convert to fraction form
    135,374/203,132.04 = 55,471.28/x
  3. Step 3: Cross multiply
    135,374x = 203,132.04 × 55,471.28
  4. Step 4: Simplify right side
    135,374x = 11,267,994,267.81
  5. Step 5: Solve for x
    x = 11,267,994,267.81/135,374
  6. Step 6: Final answer
    x = 83,236.03

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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.