Home / 111,840.36-154,344.78-69,412.56

Finding the Fourth Proportional to 111,840.36, 154,344.78 and 69,412.56

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Solution

The fourth proportional to 111,840.36, 154,344.78 and 69,412.56 is: 95,792.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,840.36 : 154,344.78 = 69,412.56 : x
  2. Step 2: Convert to fraction form
    111,840.36/154,344.78 = 69,412.56/x
  3. Step 3: Cross multiply
    111,840.36x = 154,344.78 × 69,412.56
  4. Step 4: Simplify right side
    111,840.36x = 10,713,466,302.44
  5. Step 5: Solve for x
    x = 10,713,466,302.44/111,840.36
  6. Step 6: Final answer
    x = 95,792.49

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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.