Home / 144,310.81-199,157.75-80,653.69

Finding the Fourth Proportional to 144,310.81, 199,157.75 and 80,653.69

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Solution

The fourth proportional to 144,310.81, 199,157.75 and 80,653.69 is: 111,307.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,310.81 : 199,157.75 = 80,653.69 : x
  2. Step 2: Convert to fraction form
    144,310.81/199,157.75 = 80,653.69/x
  3. Step 3: Cross multiply
    144,310.81x = 199,157.75 × 80,653.69
  4. Step 4: Simplify right side
    144,310.81x = 16,062,806,635.44
  5. Step 5: Solve for x
    x = 16,062,806,635.44/144,310.81
  6. Step 6: Final answer
    x = 111,307.03

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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.