Home / 141,218.78-194,881.67-77,556.57

Finding the Fourth Proportional to 141,218.78, 194,881.67 and 77,556.57

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Solution

The fourth proportional to 141,218.78, 194,881.67 and 77,556.57 is: 107,027.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,218.78 : 194,881.67 = 77,556.57 : x
  2. Step 2: Convert to fraction form
    141,218.78/194,881.67 = 77,556.57/x
  3. Step 3: Cross multiply
    141,218.78x = 194,881.67 × 77,556.57
  4. Step 4: Simplify right side
    141,218.78x = 15,114,353,881.07
  5. Step 5: Solve for x
    x = 15,114,353,881.07/141,218.78
  6. Step 6: Final answer
    x = 107,027.93

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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.