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Finding the Fourth Proportional to 144,325.78, 199,169.88 and 80,663.62

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Solution

The fourth proportional to 144,325.78, 199,169.88 and 80,663.62 is: 111,315.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,325.78 : 199,169.88 = 80,663.62 : x
  2. Step 2: Convert to fraction form
    144,325.78/199,169.88 = 80,663.62/x
  3. Step 3: Cross multiply
    144,325.78x = 199,169.88 × 80,663.62
  4. Step 4: Simplify right side
    144,325.78x = 16,065,763,515.77
  5. Step 5: Solve for x
    x = 16,065,763,515.77/144,325.78
  6. Step 6: Final answer
    x = 111,315.97

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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.