Home / 235,623.78-325,151.19-128,193.93

Finding the Fourth Proportional to 235,623.78, 325,151.19 and 128,193.93

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Solution

The fourth proportional to 235,623.78, 325,151.19 and 128,193.93 is: 176,902.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,623.78 : 325,151.19 = 128,193.93 : x
  2. Step 2: Convert to fraction form
    235,623.78/325,151.19 = 128,193.93/x
  3. Step 3: Cross multiply
    235,623.78x = 325,151.19 × 128,193.93
  4. Step 4: Simplify right side
    235,623.78x = 41,682,408,890.28
  5. Step 5: Solve for x
    x = 41,682,408,890.28/235,623.78
  6. Step 6: Final answer
    x = 176,902.39

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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.