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Finding the Fourth Proportional to 140,737.69, 194,214.22 and 80,307.24

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Solution

The fourth proportional to 140,737.69, 194,214.22 and 80,307.24 is: 110,821.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,737.69 : 194,214.22 = 80,307.24 : x
  2. Step 2: Convert to fraction form
    140,737.69/194,214.22 = 80,307.24/x
  3. Step 3: Cross multiply
    140,737.69x = 194,214.22 × 80,307.24
  4. Step 4: Simplify right side
    140,737.69x = 15,596,807,976.95
  5. Step 5: Solve for x
    x = 15,596,807,976.95/140,737.69
  6. Step 6: Final answer
    x = 110,821.83

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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.