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Finding the Fourth Proportional to 102,764.40, 154,153.80 and 43,593.36

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Solution

The fourth proportional to 102,764.40, 154,153.80 and 43,593.36 is: 65,393.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,764.40 : 154,153.80 = 43,593.36 : x
  2. Step 2: Convert to fraction form
    102,764.40/154,153.80 = 43,593.36/x
  3. Step 3: Cross multiply
    102,764.40x = 154,153.80 × 43,593.36
  4. Step 4: Simplify right side
    102,764.40x = 6,720,082,098.77
  5. Step 5: Solve for x
    x = 6,720,082,098.77/102,764.40
  6. Step 6: Final answer
    x = 65,393.09

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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.