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Finding the Fourth Proportional to 100,241.06, 149,946.06 and 76,367.98

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Solution

The fourth proportional to 100,241.06, 149,946.06 and 76,367.98 is: 114,235.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,241.06 : 149,946.06 = 76,367.98 : x
  2. Step 2: Convert to fraction form
    100,241.06/149,946.06 = 76,367.98/x
  3. Step 3: Cross multiply
    100,241.06x = 149,946.06 × 76,367.98
  4. Step 4: Simplify right side
    100,241.06x = 11,451,077,711.16
  5. Step 5: Solve for x
    x = 11,451,077,711.16/100,241.06
  6. Step 6: Final answer
    x = 114,235.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.