Home / 116,845-161,246.10-66,548.68

Finding the Fourth Proportional to 116,845, 161,246.10 and 66,548.68

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Solution

The fourth proportional to 116,845, 161,246.10 and 66,548.68 is: 91,837.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,845 : 161,246.10 = 66,548.68 : x
  2. Step 2: Convert to fraction form
    116,845/161,246.10 = 66,548.68/x
  3. Step 3: Cross multiply
    116,845x = 161,246.10 × 66,548.68
  4. Step 4: Simplify right side
    116,845x = 10,730,715,110.15
  5. Step 5: Solve for x
    x = 10,730,715,110.15/116,845
  6. Step 6: Final answer
    x = 91,837.18

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1.5x scale

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.