Home / 136,206.36-188,009.56-121,840.85

Finding the Fourth Proportional to 136,206.36, 188,009.56 and 121,840.85

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Solution

The fourth proportional to 136,206.36, 188,009.56 and 121,840.85 is: 168,180.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,206.36 : 188,009.56 = 121,840.85 : x
  2. Step 2: Convert to fraction form
    136,206.36/188,009.56 = 121,840.85/x
  3. Step 3: Cross multiply
    136,206.36x = 188,009.56 × 121,840.85
  4. Step 4: Simplify right side
    136,206.36x = 22,907,243,213.55
  5. Step 5: Solve for x
    x = 22,907,243,213.55/136,206.36
  6. Step 6: Final answer
    x = 168,180.42

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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.