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Finding the Fourth Proportional to 133,231.80, 199,410.30 and 103,488.60

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Solution

The fourth proportional to 133,231.80, 199,410.30 and 103,488.60 is: 154,893.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,231.80 : 199,410.30 = 103,488.60 : x
  2. Step 2: Convert to fraction form
    133,231.80/199,410.30 = 103,488.60/x
  3. Step 3: Cross multiply
    133,231.80x = 199,410.30 × 103,488.60
  4. Step 4: Simplify right side
    133,231.80x = 20,636,692,772.58
  5. Step 5: Solve for x
    x = 20,636,692,772.58/133,231.80
  6. Step 6: Final answer
    x = 154,893.15

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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.