Home / 144,271.36-199,090.80-80,609.68

Finding the Fourth Proportional to 144,271.36, 199,090.80 and 80,609.68

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Solution

The fourth proportional to 144,271.36, 199,090.80 and 80,609.68 is: 111,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,271.36 : 199,090.80 = 80,609.68 : x
  2. Step 2: Convert to fraction form
    144,271.36/199,090.80 = 80,609.68/x
  3. Step 3: Cross multiply
    144,271.36x = 199,090.80 × 80,609.68
  4. Step 4: Simplify right side
    144,271.36x = 16,048,645,678.94
  5. Step 5: Solve for x
    x = 16,048,645,678.94/144,271.36
  6. Step 6: Final answer
    x = 111,239.30

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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.