Home / 117,112.28-161,608.82-68,707.47

Finding the Fourth Proportional to 117,112.28, 161,608.82 and 68,707.47

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Solution

The fourth proportional to 117,112.28, 161,608.82 and 68,707.47 is: 94,812.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,112.28 : 161,608.82 = 68,707.47 : x
  2. Step 2: Convert to fraction form
    117,112.28/161,608.82 = 68,707.47/x
  3. Step 3: Cross multiply
    117,112.28x = 161,608.82 × 68,707.47
  4. Step 4: Simplify right side
    117,112.28x = 11,103,733,414.38
  5. Step 5: Solve for x
    x = 11,103,733,414.38/117,112.28
  6. Step 6: Final answer
    x = 94,812.72

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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.