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Finding the Fourth Proportional to 144,307.68, 199,153.44 and 80,650.56

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Solution

The fourth proportional to 144,307.68, 199,153.44 and 80,650.56 is: 111,302.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,307.68 : 199,153.44 = 80,650.56 : x
  2. Step 2: Convert to fraction form
    144,307.68/199,153.44 = 80,650.56/x
  3. Step 3: Cross multiply
    144,307.68x = 199,153.44 × 80,650.56
  4. Step 4: Simplify right side
    144,307.68x = 16,061,836,461.93
  5. Step 5: Solve for x
    x = 16,061,836,461.93/144,307.68
  6. Step 6: Final answer
    x = 111,302.71

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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.