Home / 97,163.72-134,147.84-79,301.34

Finding the Fourth Proportional to 97,163.72, 134,147.84 and 79,301.34

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Solution

The fourth proportional to 97,163.72, 134,147.84 and 79,301.34 is: 109,486.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,163.72 : 134,147.84 = 79,301.34 : x
  2. Step 2: Convert to fraction form
    97,163.72/134,147.84 = 79,301.34/x
  3. Step 3: Cross multiply
    97,163.72x = 134,147.84 × 79,301.34
  4. Step 4: Simplify right side
    97,163.72x = 10,638,103,470.11
  5. Step 5: Solve for x
    x = 10,638,103,470.11/97,163.72
  6. Step 6: Final answer
    x = 109,486.37

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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.