Home / 117,331.42-161,916.38-66,354.16

Finding the Fourth Proportional to 117,331.42, 161,916.38 and 66,354.16

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Solution

The fourth proportional to 117,331.42, 161,916.38 and 66,354.16 is: 91,568.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,331.42 : 161,916.38 = 66,354.16 : x
  2. Step 2: Convert to fraction form
    117,331.42/161,916.38 = 66,354.16/x
  3. Step 3: Cross multiply
    117,331.42x = 161,916.38 × 66,354.16
  4. Step 4: Simplify right side
    117,331.42x = 10,743,824,648.58
  5. Step 5: Solve for x
    x = 10,743,824,648.58/117,331.42
  6. Step 6: Final answer
    x = 91,568.18

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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.