Home / 117,280.33-161,844.24-66,286.28

Finding the Fourth Proportional to 117,280.33, 161,844.24 and 66,286.28

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Solution

The fourth proportional to 117,280.33, 161,844.24 and 66,286.28 is: 91,473.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,280.33 : 161,844.24 = 66,286.28 : x
  2. Step 2: Convert to fraction form
    117,280.33/161,844.24 = 66,286.28/x
  3. Step 3: Cross multiply
    117,280.33x = 161,844.24 × 66,286.28
  4. Step 4: Simplify right side
    117,280.33x = 10,728,051,799.81
  5. Step 5: Solve for x
    x = 10,728,051,799.81/117,280.33
  6. Step 6: Final answer
    x = 91,473.58

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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.