Home / 203,543.42-280,908.81-117,505.22

Finding the Fourth Proportional to 203,543.42, 280,908.81 and 117,505.22

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Solution

The fourth proportional to 203,543.42, 280,908.81 and 117,505.22 is: 162,168.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,543.42 : 280,908.81 = 117,505.22 : x
  2. Step 2: Convert to fraction form
    203,543.42/280,908.81 = 117,505.22/x
  3. Step 3: Cross multiply
    203,543.42x = 280,908.81 × 117,505.22
  4. Step 4: Simplify right side
    203,543.42x = 33,008,250,114.44
  5. Step 5: Solve for x
    x = 33,008,250,114.44/203,543.42
  6. Step 6: Final answer
    x = 162,168.11

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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.