Home / 117,851.81-162,628.40-66,165.10

Finding the Fourth Proportional to 117,851.81, 162,628.40 and 66,165.10

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Solution

The fourth proportional to 117,851.81, 162,628.40 and 66,165.10 is: 91,303.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,851.81 : 162,628.40 = 66,165.10 : x
  2. Step 2: Convert to fraction form
    117,851.81/162,628.40 = 66,165.10/x
  3. Step 3: Cross multiply
    117,851.81x = 162,628.40 × 66,165.10
  4. Step 4: Simplify right side
    117,851.81x = 10,760,324,107.68
  5. Step 5: Solve for x
    x = 10,760,324,107.68/117,851.81
  6. Step 6: Final answer
    x = 91,303.85

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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.