Home / 144,346.03-199,197.78-80,683.78

Finding the Fourth Proportional to 144,346.03, 199,197.78 and 80,683.78

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Solution

The fourth proportional to 144,346.03, 199,197.78 and 80,683.78 is: 111,343.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,346.03 : 199,197.78 = 80,683.78 : x
  2. Step 2: Convert to fraction form
    144,346.03/199,197.78 = 80,683.78/x
  3. Step 3: Cross multiply
    144,346.03x = 199,197.78 × 80,683.78
  4. Step 4: Simplify right side
    144,346.03x = 16,072,029,858.01
  5. Step 5: Solve for x
    x = 16,072,029,858.01/144,346.03
  6. Step 6: Final answer
    x = 111,343.76

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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.