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Finding the Fourth Proportional to 144,690.58, 199,674.48 and 80,161.72

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Solution

The fourth proportional to 144,690.58, 199,674.48 and 80,161.72 is: 110,623.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,690.58 : 199,674.48 = 80,161.72 : x
  2. Step 2: Convert to fraction form
    144,690.58/199,674.48 = 80,161.72/x
  3. Step 3: Cross multiply
    144,690.58x = 199,674.48 × 80,161.72
  4. Step 4: Simplify right side
    144,690.58x = 16,006,249,756.91
  5. Step 5: Solve for x
    x = 16,006,249,756.91/144,690.58
  6. Step 6: Final answer
    x = 110,623.99

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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.