Home / 142,910.67-197,224.61-79,247.10

Finding the Fourth Proportional to 142,910.67, 197,224.61 and 79,247.10

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Solution

The fourth proportional to 142,910.67, 197,224.61 and 79,247.10 is: 109,365.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,910.67 : 197,224.61 = 79,247.10 : x
  2. Step 2: Convert to fraction form
    142,910.67/197,224.61 = 79,247.10/x
  3. Step 3: Cross multiply
    142,910.67x = 197,224.61 × 79,247.10
  4. Step 4: Simplify right side
    142,910.67x = 15,629,478,391.13
  5. Step 5: Solve for x
    x = 15,629,478,391.13/142,910.67
  6. Step 6: Final answer
    x = 109,365.37

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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.