Home / 141,408.08-195,143.88-77,749.98

Finding the Fourth Proportional to 141,408.08, 195,143.88 and 77,749.98

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Solution

The fourth proportional to 141,408.08, 195,143.88 and 77,749.98 is: 107,295.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,408.08 : 195,143.88 = 77,749.98 : x
  2. Step 2: Convert to fraction form
    141,408.08/195,143.88 = 77,749.98/x
  3. Step 3: Cross multiply
    141,408.08x = 195,143.88 × 77,749.98
  4. Step 4: Simplify right side
    141,408.08x = 15,172,431,791.40
  5. Step 5: Solve for x
    x = 15,172,431,791.40/141,408.08
  6. Step 6: Final answer
    x = 107,295.37

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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.