Finding the Fourth Proportional to 110,415.80, 165,623.70 and 97,731.20
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Solution
The fourth proportional to 110,415.80, 165,623.70 and 97,731.20 is: 146,596.80
Step by Step Solution
- Step 1: Write the proportion equation
110,415.80 : 165,623.70 = 97,731.20 : x - Step 2: Convert to fraction form
110,415.80/165,623.70 = 97,731.20/x - Step 3: Cross multiply
110,415.80x = 165,623.70 × 97,731.20 - Step 4: Simplify right side
110,415.80x = 16,186,602,949.44 - Step 5: Solve for x
x = 16,186,602,949.44/110,415.80 - Step 6: Final answer
x = 146,596.80
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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.