Home / 199,713.12-275,567.63-113,667.11

Finding the Fourth Proportional to 199,713.12, 275,567.63 and 113,667.11

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Solution

The fourth proportional to 199,713.12, 275,567.63 and 113,667.11 is: 156,839.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,713.12 : 275,567.63 = 113,667.11 : x
  2. Step 2: Convert to fraction form
    199,713.12/275,567.63 = 113,667.11/x
  3. Step 3: Cross multiply
    199,713.12x = 275,567.63 × 113,667.11
  4. Step 4: Simplify right side
    199,713.12x = 31,322,976,111.65
  5. Step 5: Solve for x
    x = 31,322,976,111.65/199,713.12
  6. Step 6: Final answer
    x = 156,839.85

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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.