Finding the Fourth Proportional to 104,692.68, 156,979.35 and 71,452.98
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Solution
The fourth proportional to 104,692.68, 156,979.35 and 71,452.98 is: 107,138.75
Step by Step Solution
- Step 1: Write the proportion equation
104,692.68 : 156,979.35 = 71,452.98 : x - Step 2: Convert to fraction form
104,692.68/156,979.35 = 71,452.98/x - Step 3: Cross multiply
104,692.68x = 156,979.35 × 71,452.98 - Step 4: Simplify right side
104,692.68x = 11,216,642,355.96 - Step 5: Solve for x
x = 11,216,642,355.96/104,692.68 - Step 6: Final answer
x = 107,138.75
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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.