Finding the Fourth Proportional to 137,954.63, 206,821.10 and 77,946.08
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Solution
The fourth proportional to 137,954.63, 206,821.10 and 77,946.08 is: 116,856.50
Step by Step Solution
- Step 1: Write the proportion equation
137,954.63 : 206,821.10 = 77,946.08 : x - Step 2: Convert to fraction form
137,954.63/206,821.10 = 77,946.08/x - Step 3: Cross multiply
137,954.63x = 206,821.10 × 77,946.08 - Step 4: Simplify right side
137,954.63x = 16,120,894,764.50 - Step 5: Solve for x
x = 16,120,894,764.50/137,954.63 - Step 6: Final answer
x = 116,856.50
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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.