Home / 122,556.20-169,097.78-71,539.97

Finding the Fourth Proportional to 122,556.20, 169,097.78 and 71,539.97

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Solution

The fourth proportional to 122,556.20, 169,097.78 and 71,539.97 is: 98,707.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,556.20 : 169,097.78 = 71,539.97 : x
  2. Step 2: Convert to fraction form
    122,556.20/169,097.78 = 71,539.97/x
  3. Step 3: Cross multiply
    122,556.20x = 169,097.78 × 71,539.97
  4. Step 4: Simplify right side
    122,556.20x = 12,097,249,441.63
  5. Step 5: Solve for x
    x = 12,097,249,441.63/122,556.20
  6. Step 6: Final answer
    x = 98,707.78

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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.