Home / 117,087.48-161,583.68-71,790.44

Finding the Fourth Proportional to 117,087.48, 161,583.68 and 71,790.44

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Solution

The fourth proportional to 117,087.48, 161,583.68 and 71,790.44 is: 99,072.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,087.48 : 161,583.68 = 71,790.44 : x
  2. Step 2: Convert to fraction form
    117,087.48/161,583.68 = 71,790.44/x
  3. Step 3: Cross multiply
    117,087.48x = 161,583.68 × 71,790.44
  4. Step 4: Simplify right side
    117,087.48x = 11,600,163,057.72
  5. Step 5: Solve for x
    x = 11,600,163,057.72/117,087.48
  6. Step 6: Final answer
    x = 99,072.62

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Why These Related Problems?

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