Home / 125,912.24-188,868.46-120,445.64

Finding the Fourth Proportional to 125,912.24, 188,868.46 and 120,445.64

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Solution

The fourth proportional to 125,912.24, 188,868.46 and 120,445.64 is: 180,668.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,912.24 : 188,868.46 = 120,445.64 : x
  2. Step 2: Convert to fraction form
    125,912.24/188,868.46 = 120,445.64/x
  3. Step 3: Cross multiply
    125,912.24x = 188,868.46 × 120,445.64
  4. Step 4: Simplify right side
    125,912.24x = 22,748,382,540.51
  5. Step 5: Solve for x
    x = 22,748,382,540.51/125,912.24
  6. Step 6: Final answer
    x = 180,668.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.