Home / 212,992.38-293,799.24-136,485.72

Finding the Fourth Proportional to 212,992.38, 293,799.24 and 136,485.72

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Solution

The fourth proportional to 212,992.38, 293,799.24 and 136,485.72 is: 188,266.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,992.38 : 293,799.24 = 136,485.72 : x
  2. Step 2: Convert to fraction form
    212,992.38/293,799.24 = 136,485.72/x
  3. Step 3: Cross multiply
    212,992.38x = 293,799.24 × 136,485.72
  4. Step 4: Simplify right side
    212,992.38x = 40,099,400,806.85
  5. Step 5: Solve for x
    x = 40,099,400,806.85/212,992.38
  6. Step 6: Final answer
    x = 188,266.83

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1.5x scale

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.