Finding the Fourth Proportional to 70,876.19, 106,351.35 and 66,791.98
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Solution
The fourth proportional to 70,876.19, 106,351.35 and 66,791.98 is: 100,222.89
Step by Step Solution
- Step 1: Write the proportion equation
70,876.19 : 106,351.35 = 66,791.98 : x - Step 2: Convert to fraction form
70,876.19/106,351.35 = 66,791.98/x - Step 3: Cross multiply
70,876.19x = 106,351.35 × 66,791.98 - Step 4: Simplify right side
70,876.19x = 7,103,416,710.42 - Step 5: Solve for x
x = 7,103,416,710.42/70,876.19 - Step 6: Final answer
x = 100,222.89
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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.