Finding the Fourth Proportional to 148,692.36, 205,207.68 and 85,042.44
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Solution
The fourth proportional to 148,692.36, 205,207.68 and 85,042.44 is: 117,365.56
Step by Step Solution
- Step 1: Write the proportion equation
148,692.36 : 205,207.68 = 85,042.44 : x - Step 2: Convert to fraction form
148,692.36/205,207.68 = 85,042.44/x - Step 3: Cross multiply
148,692.36x = 205,207.68 × 85,042.44 - Step 4: Simplify right side
148,692.36x = 17,451,361,813.94 - Step 5: Solve for x
x = 17,451,361,813.94/148,692.36 - Step 6: Final answer
x = 117,365.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.