Home / 117,112.26-161,708.10-108,156.51

Finding the Fourth Proportional to 117,112.26, 161,708.10 and 108,156.51

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Solution

The fourth proportional to 117,112.26, 161,708.10 and 108,156.51 is: 149,342.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,112.26 : 161,708.10 = 108,156.51 : x
  2. Step 2: Convert to fraction form
    117,112.26/161,708.10 = 108,156.51/x
  3. Step 3: Cross multiply
    117,112.26x = 161,708.10 × 108,156.51
  4. Step 4: Simplify right side
    117,112.26x = 17,489,783,734.73
  5. Step 5: Solve for x
    x = 17,489,783,734.73/117,112.26
  6. Step 6: Final answer
    x = 149,342.04

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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.