Home / 144,307.70-199,144.04-80,645.48

Finding the Fourth Proportional to 144,307.70, 199,144.04 and 80,645.48

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Solution

The fourth proportional to 144,307.70, 199,144.04 and 80,645.48 is: 111,290.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,307.70 : 199,144.04 = 80,645.48 : x
  2. Step 2: Convert to fraction form
    144,307.70/199,144.04 = 80,645.48/x
  3. Step 3: Cross multiply
    144,307.70x = 199,144.04 × 80,645.48
  4. Step 4: Simplify right side
    144,307.70x = 16,060,066,694.94
  5. Step 5: Solve for x
    x = 16,060,066,694.94/144,307.70
  6. Step 6: Final answer
    x = 111,290.43

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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.