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Finding the Fourth Proportional to 116,999.34, 161,458.92 and 66,012

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Solution

The fourth proportional to 116,999.34, 161,458.92 and 66,012 is: 91,096.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,999.34 : 161,458.92 = 66,012 : x
  2. Step 2: Convert to fraction form
    116,999.34/161,458.92 = 66,012/x
  3. Step 3: Cross multiply
    116,999.34x = 161,458.92 × 66,012
  4. Step 4: Simplify right side
    116,999.34x = 10,658,226,227.04
  5. Step 5: Solve for x
    x = 10,658,226,227.04/116,999.34
  6. Step 6: Final answer
    x = 91,096.46

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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.