Home / 188,589.36-260,255.16-103,707

Finding the Fourth Proportional to 188,589.36, 260,255.16 and 103,707

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Solution

The fourth proportional to 188,589.36, 260,255.16 and 103,707 is: 143,116.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,589.36 : 260,255.16 = 103,707 : x
  2. Step 2: Convert to fraction form
    188,589.36/260,255.16 = 103,707/x
  3. Step 3: Cross multiply
    188,589.36x = 260,255.16 × 103,707
  4. Step 4: Simplify right side
    188,589.36x = 26,990,281,878.12
  5. Step 5: Solve for x
    x = 26,990,281,878.12/188,589.36
  6. Step 6: Final answer
    x = 143,116.67

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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.