Home / 134,786.64-185,946.36-81,040.56

Finding the Fourth Proportional to 134,786.64, 185,946.36 and 81,040.56

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Solution

The fourth proportional to 134,786.64, 185,946.36 and 81,040.56 is: 111,800.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,786.64 : 185,946.36 = 81,040.56 : x
  2. Step 2: Convert to fraction form
    134,786.64/185,946.36 = 81,040.56/x
  3. Step 3: Cross multiply
    134,786.64x = 185,946.36 × 81,040.56
  4. Step 4: Simplify right side
    134,786.64x = 15,069,197,144.36
  5. Step 5: Solve for x
    x = 15,069,197,144.36/134,786.64
  6. Step 6: Final answer
    x = 111,800.38

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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.