Home / 117,332.42-161,917.75-66,355.16

Finding the Fourth Proportional to 117,332.42, 161,917.75 and 66,355.16

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Solution

The fourth proportional to 117,332.42, 161,917.75 and 66,355.16 is: 91,569.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,332.42 : 161,917.75 = 66,355.16 : x
  2. Step 2: Convert to fraction form
    117,332.42/161,917.75 = 66,355.16/x
  3. Step 3: Cross multiply
    117,332.42x = 161,917.75 × 66,355.16
  4. Step 4: Simplify right side
    117,332.42x = 10,744,078,208.09
  5. Step 5: Solve for x
    x = 10,744,078,208.09/117,332.42
  6. Step 6: Final answer
    x = 91,569.56

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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.