Home / 203,617.22-281,007.17-112,990.32

Finding the Fourth Proportional to 203,617.22, 281,007.17 and 112,990.32

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Solution

The fourth proportional to 203,617.22, 281,007.17 and 112,990.32 is: 155,935.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,617.22 : 281,007.17 = 112,990.32 : x
  2. Step 2: Convert to fraction form
    203,617.22/281,007.17 = 112,990.32/x
  3. Step 3: Cross multiply
    203,617.22x = 281,007.17 × 112,990.32
  4. Step 4: Simplify right side
    203,617.22x = 31,751,089,495.64
  5. Step 5: Solve for x
    x = 31,751,089,495.64/203,617.22
  6. Step 6: Final answer
    x = 155,935.19

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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.