Home / 189,918.61-262,067.67-113,427.08

Finding the Fourth Proportional to 189,918.61, 262,067.67 and 113,427.08

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Solution

The fourth proportional to 189,918.61, 262,067.67 and 113,427.08 is: 156,517.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,918.61 : 262,067.67 = 113,427.08 : x
  2. Step 2: Convert to fraction form
    189,918.61/262,067.67 = 113,427.08/x
  3. Step 3: Cross multiply
    189,918.61x = 262,067.67 × 113,427.08
  4. Step 4: Simplify right side
    189,918.61x = 29,725,570,570.50
  5. Step 5: Solve for x
    x = 29,725,570,570.50/189,918.61
  6. Step 6: Final answer
    x = 156,517.42

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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.