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Finding the Fourth Proportional to 203,019.37, 280,102.32 and 118,120.03

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Solution

The fourth proportional to 203,019.37, 280,102.32 and 118,120.03 is: 162,968.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,019.37 : 280,102.32 = 118,120.03 : x
  2. Step 2: Convert to fraction form
    203,019.37/280,102.32 = 118,120.03/x
  3. Step 3: Cross multiply
    203,019.37x = 280,102.32 × 118,120.03
  4. Step 4: Simplify right side
    203,019.37x = 33,085,693,741.21
  5. Step 5: Solve for x
    x = 33,085,693,741.21/203,019.37
  6. Step 6: Final answer
    x = 162,968.16

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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.