Home / 203,980.26-281,412.15-117,923.40

Finding the Fourth Proportional to 203,980.26, 281,412.15 and 117,923.40

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Solution

The fourth proportional to 203,980.26, 281,412.15 and 117,923.40 is: 162,687.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,980.26 : 281,412.15 = 117,923.40 : x
  2. Step 2: Convert to fraction form
    203,980.26/281,412.15 = 117,923.40/x
  3. Step 3: Cross multiply
    203,980.26x = 281,412.15 × 117,923.40
  4. Step 4: Simplify right side
    203,980.26x = 33,185,077,529.31
  5. Step 5: Solve for x
    x = 33,185,077,529.31/203,980.26
  6. Step 6: Final answer
    x = 162,687.69

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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.