Home / 115,969.40-173,954.10-79,105.40

Finding the Fourth Proportional to 115,969.40, 173,954.10 and 79,105.40

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Solution

The fourth proportional to 115,969.40, 173,954.10 and 79,105.40 is: 118,658.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,969.40 : 173,954.10 = 79,105.40 : x
  2. Step 2: Convert to fraction form
    115,969.40/173,954.10 = 79,105.40/x
  3. Step 3: Cross multiply
    115,969.40x = 173,954.10 × 79,105.40
  4. Step 4: Simplify right side
    115,969.40x = 13,760,708,662.14
  5. Step 5: Solve for x
    x = 13,760,708,662.14/115,969.40
  6. Step 6: Final answer
    x = 118,658.10

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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.