Home / 117,171.60-161,694.81-63,456.18

Finding the Fourth Proportional to 117,171.60, 161,694.81 and 63,456.18

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Solution

The fourth proportional to 117,171.60, 161,694.81 and 63,456.18 is: 87,568.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,171.60 : 161,694.81 = 63,456.18 : x
  2. Step 2: Convert to fraction form
    117,171.60/161,694.81 = 63,456.18/x
  3. Step 3: Cross multiply
    117,171.60x = 161,694.81 × 63,456.18
  4. Step 4: Simplify right side
    117,171.60x = 10,260,534,968.43
  5. Step 5: Solve for x
    x = 10,260,534,968.43/117,171.60
  6. Step 6: Final answer
    x = 87,568.45

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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.