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Finding the Fourth Proportional to 135,048.60, 202,410.90 and 56,122.20

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Solution

The fourth proportional to 135,048.60, 202,410.90 and 56,122.20 is: 84,115.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,048.60 : 202,410.90 = 56,122.20 : x
  2. Step 2: Convert to fraction form
    135,048.60/202,410.90 = 56,122.20/x
  3. Step 3: Cross multiply
    135,048.60x = 202,410.90 × 56,122.20
  4. Step 4: Simplify right side
    135,048.60x = 11,359,745,011.98
  5. Step 5: Solve for x
    x = 11,359,745,011.98/135,048.60
  6. Step 6: Final answer
    x = 84,115.98

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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.