Home / 117,112.43-161,616.27-68,715.18

Finding the Fourth Proportional to 117,112.43, 161,616.27 and 68,715.18

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Solution

The fourth proportional to 117,112.43, 161,616.27 and 68,715.18 is: 94,827.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,112.43 : 161,616.27 = 68,715.18 : x
  2. Step 2: Convert to fraction form
    117,112.43/161,616.27 = 68,715.18/x
  3. Step 3: Cross multiply
    117,112.43x = 161,616.27 × 68,715.18
  4. Step 4: Simplify right side
    117,112.43x = 11,105,491,083.98
  5. Step 5: Solve for x
    x = 11,105,491,083.98/117,112.43
  6. Step 6: Final answer
    x = 94,827.60

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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.