Home / 258,074.10-387,110.97-80,596.32

Finding the Fourth Proportional to 258,074.10, 387,110.97 and 80,596.32

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Solution

The fourth proportional to 258,074.10, 387,110.97 and 80,596.32 is: 120,894.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,074.10 : 387,110.97 = 80,596.32 : x
  2. Step 2: Convert to fraction form
    258,074.10/387,110.97 = 80,596.32/x
  3. Step 3: Cross multiply
    258,074.10x = 387,110.97 × 80,596.32
  4. Step 4: Simplify right side
    258,074.10x = 31,199,719,613.63
  5. Step 5: Solve for x
    x = 31,199,719,613.63/258,074.10
  6. Step 6: Final answer
    x = 120,894.42

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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.