Home / 117,239.10-161,792.96-71,942.11

Finding the Fourth Proportional to 117,239.10, 161,792.96 and 71,942.11

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Solution

The fourth proportional to 117,239.10, 161,792.96 and 71,942.11 is: 99,281.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,239.10 : 161,792.96 = 71,942.11 : x
  2. Step 2: Convert to fraction form
    117,239.10/161,792.96 = 71,942.11/x
  3. Step 3: Cross multiply
    117,239.10x = 161,792.96 × 71,942.11
  4. Step 4: Simplify right side
    117,239.10x = 11,639,726,566.03
  5. Step 5: Solve for x
    x = 11,639,726,566.03/117,239.10
  6. Step 6: Final answer
    x = 99,281.95

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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.