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Finding the Fourth Proportional to 164,138.40, 226,513.63 and 91,539.35

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Solution

The fourth proportional to 164,138.40, 226,513.63 and 91,539.35 is: 126,325.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,138.40 : 226,513.63 = 91,539.35 : x
  2. Step 2: Convert to fraction form
    164,138.40/226,513.63 = 91,539.35/x
  3. Step 3: Cross multiply
    164,138.40x = 226,513.63 × 91,539.35
  4. Step 4: Simplify right side
    164,138.40x = 20,734,910,287.62
  5. Step 5: Solve for x
    x = 20,734,910,287.62/164,138.40
  6. Step 6: Final answer
    x = 126,325.77

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.