Home / 203,670.40-281,112.96-118,802.56

Finding the Fourth Proportional to 203,670.40, 281,112.96 and 118,802.56

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Solution

The fourth proportional to 203,670.40, 281,112.96 and 118,802.56 is: 163,975.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,670.40 : 281,112.96 = 118,802.56 : x
  2. Step 2: Convert to fraction form
    203,670.40/281,112.96 = 118,802.56/x
  3. Step 3: Cross multiply
    203,670.40x = 281,112.96 × 118,802.56
  4. Step 4: Simplify right side
    203,670.40x = 33,396,939,297.18
  5. Step 5: Solve for x
    x = 33,396,939,297.18/203,670.40
  6. Step 6: Final answer
    x = 163,975.42

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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.