Home / 116,748.54-161,121.15-66,447.54

Finding the Fourth Proportional to 116,748.54, 161,121.15 and 66,447.54

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Solution

The fourth proportional to 116,748.54, 161,121.15 and 66,447.54 is: 91,702.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,748.54 : 161,121.15 = 66,447.54 : x
  2. Step 2: Convert to fraction form
    116,748.54/161,121.15 = 66,447.54/x
  3. Step 3: Cross multiply
    116,748.54x = 161,121.15 × 66,447.54
  4. Step 4: Simplify right side
    116,748.54x = 10,706,104,059.47
  5. Step 5: Solve for x
    x = 10,706,104,059.47/116,748.54
  6. Step 6: Final answer
    x = 91,702.25

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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.