Home / 203,629.78-281,004.80-112,983.80

Finding the Fourth Proportional to 203,629.78, 281,004.80 and 112,983.80

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Solution

The fourth proportional to 203,629.78, 281,004.80 and 112,983.80 is: 155,915.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,629.78 : 281,004.80 = 112,983.80 : x
  2. Step 2: Convert to fraction form
    203,629.78/281,004.80 = 112,983.80/x
  3. Step 3: Cross multiply
    203,629.78x = 281,004.80 × 112,983.80
  4. Step 4: Simplify right side
    203,629.78x = 31,748,990,122.24
  5. Step 5: Solve for x
    x = 31,748,990,122.24/203,629.78
  6. Step 6: Final answer
    x = 155,915.26

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1.5x scale

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.