Home / 117,056.66-161,538-66,080.12

Finding the Fourth Proportional to 117,056.66, 161,538 and 66,080.12

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Solution

The fourth proportional to 117,056.66, 161,538 and 66,080.12 is: 91,190.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,056.66 : 161,538 = 66,080.12 : x
  2. Step 2: Convert to fraction form
    117,056.66/161,538 = 66,080.12/x
  3. Step 3: Cross multiply
    117,056.66x = 161,538 × 66,080.12
  4. Step 4: Simplify right side
    117,056.66x = 10,674,450,424.56
  5. Step 5: Solve for x
    x = 10,674,450,424.56/117,056.66
  6. Step 6: Final answer
    x = 91,190.46

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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.