Home / 236,005.56-353,877.09-78,147.90

Finding the Fourth Proportional to 236,005.56, 353,877.09 and 78,147.90

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Solution

The fourth proportional to 236,005.56, 353,877.09 and 78,147.90 is: 117,178.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,005.56 : 353,877.09 = 78,147.90 : x
  2. Step 2: Convert to fraction form
    236,005.56/353,877.09 = 78,147.90/x
  3. Step 3: Cross multiply
    236,005.56x = 353,877.09 × 78,147.90
  4. Step 4: Simplify right side
    236,005.56x = 27,654,751,441.61
  5. Step 5: Solve for x
    x = 27,654,751,441.61/236,005.56
  6. Step 6: Final answer
    x = 117,178.39

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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.