Home / 117,085.35-161,537.97-66,092.07

Finding the Fourth Proportional to 117,085.35, 161,537.97 and 66,092.07

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Solution

The fourth proportional to 117,085.35, 161,537.97 and 66,092.07 is: 91,184.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,085.35 : 161,537.97 = 66,092.07 : x
  2. Step 2: Convert to fraction form
    117,085.35/161,537.97 = 66,092.07/x
  3. Step 3: Cross multiply
    117,085.35x = 161,537.97 × 66,092.07
  4. Step 4: Simplify right side
    117,085.35x = 10,676,378,820.90
  5. Step 5: Solve for x
    x = 10,676,378,820.90/117,085.35
  6. Step 6: Final answer
    x = 91,184.58

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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.