Home / 111,943.38-167,915.07-92,180.79

Finding the Fourth Proportional to 111,943.38, 167,915.07 and 92,180.79

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Solution

The fourth proportional to 111,943.38, 167,915.07 and 92,180.79 is: 138,271.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,943.38 : 167,915.07 = 92,180.79 : x
  2. Step 2: Convert to fraction form
    111,943.38/167,915.07 = 92,180.79/x
  3. Step 3: Cross multiply
    111,943.38x = 167,915.07 × 92,180.79
  4. Step 4: Simplify right side
    111,943.38x = 15,478,543,805.51
  5. Step 5: Solve for x
    x = 15,478,543,805.51/111,943.38
  6. Step 6: Final answer
    x = 138,271.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.