Home / 123,627.36-170,608.68-75,212.64

Finding the Fourth Proportional to 123,627.36, 170,608.68 and 75,212.64

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Solution

The fourth proportional to 123,627.36, 170,608.68 and 75,212.64 is: 103,795.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,627.36 : 170,608.68 = 75,212.64 : x
  2. Step 2: Convert to fraction form
    123,627.36/170,608.68 = 75,212.64/x
  3. Step 3: Cross multiply
    123,627.36x = 170,608.68 × 75,212.64
  4. Step 4: Simplify right side
    123,627.36x = 12,831,929,229.72
  5. Step 5: Solve for x
    x = 12,831,929,229.72/123,627.36
  6. Step 6: Final answer
    x = 103,795.22

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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.