Home / 203,467.72-305,195.10-53,703.40

Finding the Fourth Proportional to 203,467.72, 305,195.10 and 53,703.40

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Solution

The fourth proportional to 203,467.72, 305,195.10 and 53,703.40 is: 80,553.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,467.72 : 305,195.10 = 53,703.40 : x
  2. Step 2: Convert to fraction form
    203,467.72/305,195.10 = 53,703.40/x
  3. Step 3: Cross multiply
    203,467.72x = 305,195.10 × 53,703.40
  4. Step 4: Simplify right side
    203,467.72x = 16,390,014,533.34
  5. Step 5: Solve for x
    x = 16,390,014,533.34/203,467.72
  6. Step 6: Final answer
    x = 80,553.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.