Home / 111,905.45-154,429.51-60,918.55

Finding the Fourth Proportional to 111,905.45, 154,429.51 and 60,918.55

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Solution

The fourth proportional to 111,905.45, 154,429.51 and 60,918.55 is: 84,067.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,905.45 : 154,429.51 = 60,918.55 : x
  2. Step 2: Convert to fraction form
    111,905.45/154,429.51 = 60,918.55/x
  3. Step 3: Cross multiply
    111,905.45x = 154,429.51 × 60,918.55
  4. Step 4: Simplify right side
    111,905.45x = 9,407,621,054.26
  5. Step 5: Solve for x
    x = 9,407,621,054.26/111,905.45
  6. Step 6: Final answer
    x = 84,067.59

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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.