Home / 117,681.36-162,396.32-67,370.64

Finding the Fourth Proportional to 117,681.36, 162,396.32 and 67,370.64

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Solution

The fourth proportional to 117,681.36, 162,396.32 and 67,370.64 is: 92,969.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,681.36 : 162,396.32 = 67,370.64 : x
  2. Step 2: Convert to fraction form
    117,681.36/162,396.32 = 67,370.64/x
  3. Step 3: Cross multiply
    117,681.36x = 162,396.32 × 67,370.64
  4. Step 4: Simplify right side
    117,681.36x = 10,940,744,012.04
  5. Step 5: Solve for x
    x = 10,940,744,012.04/117,681.36
  6. Step 6: Final answer
    x = 92,969.22

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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.