Home / 117,104.31-161,604.45-66,119.28

Finding the Fourth Proportional to 117,104.31, 161,604.45 and 66,119.28

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Solution

The fourth proportional to 117,104.31, 161,604.45 and 66,119.28 is: 91,244.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,104.31 : 161,604.45 = 66,119.28 : x
  2. Step 2: Convert to fraction form
    117,104.31/161,604.45 = 66,119.28/x
  3. Step 3: Cross multiply
    117,104.31x = 161,604.45 × 66,119.28
  4. Step 4: Simplify right side
    117,104.31x = 10,685,169,878.80
  5. Step 5: Solve for x
    x = 10,685,169,878.80/117,104.31
  6. Step 6: Final answer
    x = 91,244.89

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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.