Home / 117,053.16-161,533.17-66,076.62

Finding the Fourth Proportional to 117,053.16, 161,533.17 and 66,076.62

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Solution

The fourth proportional to 117,053.16, 161,533.17 and 66,076.62 is: 91,185.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,053.16 : 161,533.17 = 66,076.62 : x
  2. Step 2: Convert to fraction form
    117,053.16/161,533.17 = 66,076.62/x
  3. Step 3: Cross multiply
    117,053.16x = 161,533.17 × 66,076.62
  4. Step 4: Simplify right side
    117,053.16x = 10,673,565,891.49
  5. Step 5: Solve for x
    x = 10,673,565,891.49/117,053.16
  6. Step 6: Final answer
    x = 91,185.63

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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.