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Finding the Fourth Proportional to 144,281.42, 199,104.54 and 80,619.74

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Solution

The fourth proportional to 144,281.42, 199,104.54 and 80,619.74 is: 111,253.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,281.42 : 199,104.54 = 80,619.74 : x
  2. Step 2: Convert to fraction form
    144,281.42/199,104.54 = 80,619.74/x
  3. Step 3: Cross multiply
    144,281.42x = 199,104.54 × 80,619.74
  4. Step 4: Simplify right side
    144,281.42x = 16,051,756,247.62
  5. Step 5: Solve for x
    x = 16,051,756,247.62/144,281.42
  6. Step 6: Final answer
    x = 111,253.11

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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.