Home / 196,939.89-295,218.54-156,861.09

Finding the Fourth Proportional to 196,939.89, 295,218.54 and 156,861.09

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Solution

The fourth proportional to 196,939.89, 295,218.54 and 156,861.09 is: 235,139.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,939.89 : 295,218.54 = 156,861.09 : x
  2. Step 2: Convert to fraction form
    196,939.89/295,218.54 = 156,861.09/x
  3. Step 3: Cross multiply
    196,939.89x = 295,218.54 × 156,861.09
  4. Step 4: Simplify right side
    196,939.89x = 46,308,301,972.61
  5. Step 5: Solve for x
    x = 46,308,301,972.61/196,939.89
  6. Step 6: Final answer
    x = 235,139.27

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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.