Home / 203,004.86-280,142.78-112,360.82

Finding the Fourth Proportional to 203,004.86, 280,142.78 and 112,360.82

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Solution

The fourth proportional to 203,004.86, 280,142.78 and 112,360.82 is: 155,055.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,004.86 : 280,142.78 = 112,360.82 : x
  2. Step 2: Convert to fraction form
    203,004.86/280,142.78 = 112,360.82/x
  3. Step 3: Cross multiply
    203,004.86x = 280,142.78 × 112,360.82
  4. Step 4: Simplify right side
    203,004.86x = 31,477,072,477.88
  5. Step 5: Solve for x
    x = 31,477,072,477.88/203,004.86
  6. Step 6: Final answer
    x = 155,055.76

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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.