Home / 117,087.19-161,580.35-66,786.19

Finding the Fourth Proportional to 117,087.19, 161,580.35 and 66,786.19

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Solution

The fourth proportional to 117,087.19, 161,580.35 and 66,786.19 is: 92,164.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,087.19 : 161,580.35 = 66,786.19 : x
  2. Step 2: Convert to fraction form
    117,087.19/161,580.35 = 66,786.19/x
  3. Step 3: Cross multiply
    117,087.19x = 161,580.35 × 66,786.19
  4. Step 4: Simplify right side
    117,087.19x = 10,791,335,718.38
  5. Step 5: Solve for x
    x = 10,791,335,718.38/117,087.19
  6. Step 6: Final answer
    x = 92,164.96

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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.