Home / 203,135.22-280,319.58-112,494.96

Finding the Fourth Proportional to 203,135.22, 280,319.58 and 112,494.96

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Solution

The fourth proportional to 203,135.22, 280,319.58 and 112,494.96 is: 155,239.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,135.22 : 280,319.58 = 112,494.96 : x
  2. Step 2: Convert to fraction form
    203,135.22/280,319.58 = 112,494.96/x
  3. Step 3: Cross multiply
    203,135.22x = 280,319.58 × 112,494.96
  4. Step 4: Simplify right side
    203,135.22x = 31,534,539,939.32
  5. Step 5: Solve for x
    x = 31,534,539,939.32/203,135.22
  6. Step 6: Final answer
    x = 155,239.16

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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.