Home / 142,363.26-196,458.57-78,699.69

Finding the Fourth Proportional to 142,363.26, 196,458.57 and 78,699.69

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Solution

The fourth proportional to 142,363.26, 196,458.57 and 78,699.69 is: 108,604.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,363.26 : 196,458.57 = 78,699.69 : x
  2. Step 2: Convert to fraction form
    142,363.26/196,458.57 = 78,699.69/x
  3. Step 3: Cross multiply
    142,363.26x = 196,458.57 × 78,699.69
  4. Step 4: Simplify right side
    142,363.26x = 15,461,228,556.84
  5. Step 5: Solve for x
    x = 15,461,228,556.84/142,363.26
  6. Step 6: Final answer
    x = 108,604.06

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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.