Home / 203,090.83-280,274.09-112,446.79

Finding the Fourth Proportional to 203,090.83, 280,274.09 and 112,446.79

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Solution

The fourth proportional to 203,090.83, 280,274.09 and 112,446.79 is: 155,181.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,090.83 : 280,274.09 = 112,446.79 : x
  2. Step 2: Convert to fraction form
    203,090.83/280,274.09 = 112,446.79/x
  3. Step 3: Cross multiply
    203,090.83x = 280,274.09 × 112,446.79
  4. Step 4: Simplify right side
    203,090.83x = 31,515,920,477.75
  5. Step 5: Solve for x
    x = 31,515,920,477.75/203,090.83
  6. Step 6: Final answer
    x = 155,181.41

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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.