Home / 119,846.16-179,629.26-90,168.64

Finding the Fourth Proportional to 119,846.16, 179,629.26 and 90,168.64

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Solution

The fourth proportional to 119,846.16, 179,629.26 and 90,168.64 is: 135,147.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,846.16 : 179,629.26 = 90,168.64 : x
  2. Step 2: Convert to fraction form
    119,846.16/179,629.26 = 90,168.64/x
  3. Step 3: Cross multiply
    119,846.16x = 179,629.26 × 90,168.64
  4. Step 4: Simplify right side
    119,846.16x = 16,196,926,078.41
  5. Step 5: Solve for x
    x = 16,196,926,078.41/119,846.16
  6. Step 6: Final answer
    x = 135,147.64

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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.