Home / 121,751.37-182,668.07-76,720.44

Finding the Fourth Proportional to 121,751.37, 182,668.07 and 76,720.44

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Solution

The fourth proportional to 121,751.37, 182,668.07 and 76,720.44 is: 115,106.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,751.37 : 182,668.07 = 76,720.44 : x
  2. Step 2: Convert to fraction form
    121,751.37/182,668.07 = 76,720.44/x
  3. Step 3: Cross multiply
    121,751.37x = 182,668.07 × 76,720.44
  4. Step 4: Simplify right side
    121,751.37x = 14,014,374,704.35
  5. Step 5: Solve for x
    x = 14,014,374,704.35/121,751.37
  6. Step 6: Final answer
    x = 115,106.51

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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.