Home / 111,837.36-154,340.64-69,409.56

Finding the Fourth Proportional to 111,837.36, 154,340.64 and 69,409.56

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Solution

The fourth proportional to 111,837.36, 154,340.64 and 69,409.56 is: 95,788.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,837.36 : 154,340.64 = 69,409.56 : x
  2. Step 2: Convert to fraction form
    111,837.36/154,340.64 = 69,409.56/x
  3. Step 3: Cross multiply
    111,837.36x = 154,340.64 × 69,409.56
  4. Step 4: Simplify right side
    111,837.36x = 10,712,715,912.52
  5. Step 5: Solve for x
    x = 10,712,715,912.52/111,837.36
  6. Step 6: Final answer
    x = 95,788.35

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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.