Home / 189,950.10-262,137.60-108,290.42

Finding the Fourth Proportional to 189,950.10, 262,137.60 and 108,290.42

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Solution

The fourth proportional to 189,950.10, 262,137.60 and 108,290.42 is: 149,444.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,950.10 : 262,137.60 = 108,290.42 : x
  2. Step 2: Convert to fraction form
    189,950.10/262,137.60 = 108,290.42/x
  3. Step 3: Cross multiply
    189,950.10x = 262,137.60 × 108,290.42
  4. Step 4: Simplify right side
    189,950.10x = 28,386,990,474.12
  5. Step 5: Solve for x
    x = 28,386,990,474.12/189,950.10
  6. Step 6: Final answer
    x = 149,444.46

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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.