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Finding the Fourth Proportional to 135,450.70, 203,103.15 and 56,475.70

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Solution

The fourth proportional to 135,450.70, 203,103.15 and 56,475.70 is: 84,683.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,450.70 : 203,103.15 = 56,475.70 : x
  2. Step 2: Convert to fraction form
    135,450.70/203,103.15 = 56,475.70/x
  3. Step 3: Cross multiply
    135,450.70x = 203,103.15 × 56,475.70
  4. Step 4: Simplify right side
    135,450.70x = 11,470,392,568.46
  5. Step 5: Solve for x
    x = 11,470,392,568.46/135,450.70
  6. Step 6: Final answer
    x = 84,683.15

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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.