Home / 111,167.44-153,426.36-68,172.64

Finding the Fourth Proportional to 111,167.44, 153,426.36 and 68,172.64

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Solution

The fourth proportional to 111,167.44, 153,426.36 and 68,172.64 is: 94,087.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,167.44 : 153,426.36 = 68,172.64 : x
  2. Step 2: Convert to fraction form
    111,167.44/153,426.36 = 68,172.64/x
  3. Step 3: Cross multiply
    111,167.44x = 153,426.36 × 68,172.64
  4. Step 4: Simplify right side
    111,167.44x = 10,459,480,006.79
  5. Step 5: Solve for x
    x = 10,459,480,006.79/111,167.44
  6. Step 6: Final answer
    x = 94,087.62

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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.