Home / 236,003.55-353,874.09-78,145.89

Finding the Fourth Proportional to 236,003.55, 353,874.09 and 78,145.89

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Solution

The fourth proportional to 236,003.55, 353,874.09 and 78,145.89 is: 117,175.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,003.55 : 353,874.09 = 78,145.89 : x
  2. Step 2: Convert to fraction form
    236,003.55/353,874.09 = 78,145.89/x
  3. Step 3: Cross multiply
    236,003.55x = 353,874.09 × 78,145.89
  4. Step 4: Simplify right side
    236,003.55x = 27,653,805,710.99
  5. Step 5: Solve for x
    x = 27,653,805,710.99/236,003.55
  6. Step 6: Final answer
    x = 117,175.38

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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.