Home / 117,197.71-161,626.53-76,896.16

Finding the Fourth Proportional to 117,197.71, 161,626.53 and 76,896.16

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Solution

The fourth proportional to 117,197.71, 161,626.53 and 76,896.16 is: 106,046.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,197.71 : 161,626.53 = 76,896.16 : x
  2. Step 2: Convert to fraction form
    117,197.71/161,626.53 = 76,896.16/x
  3. Step 3: Cross multiply
    117,197.71x = 161,626.53 × 76,896.16
  4. Step 4: Simplify right side
    117,197.71x = 12,428,459,511.12
  5. Step 5: Solve for x
    x = 12,428,459,511.12/117,197.71
  6. Step 6: Final answer
    x = 106,046.95

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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.