Finding the Fourth Proportional to 106,312.20, 159,249.60 and 73,069.80
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Solution
The fourth proportional to 106,312.20, 159,249.60 and 73,069.80 is: 109,454.38
Step by Step Solution
- Step 1: Write the proportion equation
106,312.20 : 159,249.60 = 73,069.80 : x - Step 2: Convert to fraction form
106,312.20/159,249.60 = 73,069.80/x - Step 3: Cross multiply
106,312.20x = 159,249.60 × 73,069.80 - Step 4: Simplify right side
106,312.20x = 11,636,336,422.08 - Step 5: Solve for x
x = 11,636,336,422.08/106,312.20 - Step 6: Final answer
x = 109,454.38
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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.