Home / 189,131.24-260,981.88-108,539.48

Finding the Fourth Proportional to 189,131.24, 260,981.88 and 108,539.48

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Solution

The fourth proportional to 189,131.24, 260,981.88 and 108,539.48 is: 149,773.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,131.24 : 260,981.88 = 108,539.48 : x
  2. Step 2: Convert to fraction form
    189,131.24/260,981.88 = 108,539.48/x
  3. Step 3: Cross multiply
    189,131.24x = 260,981.88 × 108,539.48
  4. Step 4: Simplify right side
    189,131.24x = 28,326,837,544.62
  5. Step 5: Solve for x
    x = 28,326,837,544.62/189,131.24
  6. Step 6: Final answer
    x = 149,773.45

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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.