Home / 116,958.09-161,403.08-64,571.69

Finding the Fourth Proportional to 116,958.09, 161,403.08 and 64,571.69

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Solution

The fourth proportional to 116,958.09, 161,403.08 and 64,571.69 is: 89,109.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,958.09 : 161,403.08 = 64,571.69 : x
  2. Step 2: Convert to fraction form
    116,958.09/161,403.08 = 64,571.69/x
  3. Step 3: Cross multiply
    116,958.09x = 161,403.08 × 64,571.69
  4. Step 4: Simplify right side
    116,958.09x = 10,422,068,516.93
  5. Step 5: Solve for x
    x = 10,422,068,516.93/116,958.09
  6. Step 6: Final answer
    x = 89,109.43

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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.