Home / 136,448.40-188,198.20-91,104.60

Finding the Fourth Proportional to 136,448.40, 188,198.20 and 91,104.60

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Solution

The fourth proportional to 136,448.40, 188,198.20 and 91,104.60 is: 125,657.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,448.40 : 188,198.20 = 91,104.60 : x
  2. Step 2: Convert to fraction form
    136,448.40/188,198.20 = 91,104.60/x
  3. Step 3: Cross multiply
    136,448.40x = 188,198.20 × 91,104.60
  4. Step 4: Simplify right side
    136,448.40x = 17,145,721,731.72
  5. Step 5: Solve for x
    x = 17,145,721,731.72/136,448.40
  6. Step 6: Final answer
    x = 125,657.18

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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.