Home / 136,684.23-188,456.65-112,400.33

Finding the Fourth Proportional to 136,684.23, 188,456.65 and 112,400.33

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Solution

The fourth proportional to 136,684.23, 188,456.65 and 112,400.33 is: 154,974.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,684.23 : 188,456.65 = 112,400.33 : x
  2. Step 2: Convert to fraction form
    136,684.23/188,456.65 = 112,400.33/x
  3. Step 3: Cross multiply
    136,684.23x = 188,456.65 × 112,400.33
  4. Step 4: Simplify right side
    136,684.23x = 21,182,589,650.69
  5. Step 5: Solve for x
    x = 21,182,589,650.69/136,684.23
  6. Step 6: Final answer
    x = 154,974.64

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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.