Home / 199,173.28-298,815.36-86,863.36

Finding the Fourth Proportional to 199,173.28, 298,815.36 and 86,863.36

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Solution

The fourth proportional to 199,173.28, 298,815.36 and 86,863.36 is: 130,319.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,173.28 : 298,815.36 = 86,863.36 : x
  2. Step 2: Convert to fraction form
    199,173.28/298,815.36 = 86,863.36/x
  3. Step 3: Cross multiply
    199,173.28x = 298,815.36 × 86,863.36
  4. Step 4: Simplify right side
    199,173.28x = 25,956,106,189.21
  5. Step 5: Solve for x
    x = 25,956,106,189.21/199,173.28
  6. Step 6: Final answer
    x = 130,319.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.