Finding the Fourth Proportional to 128,827.56, 177,692.09 and 124,492.44
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Solution
The fourth proportional to 128,827.56, 177,692.09 and 124,492.44 is: 171,712.65
Step by Step Solution
- Step 1: Write the proportion equation
128,827.56 : 177,692.09 = 124,492.44 : x - Step 2: Convert to fraction form
128,827.56/177,692.09 = 124,492.44/x - Step 3: Cross multiply
128,827.56x = 177,692.09 × 124,492.44 - Step 4: Simplify right side
128,827.56x = 22,121,321,230.34 - Step 5: Solve for x
x = 22,121,321,230.34/128,827.56 - Step 6: Final answer
x = 171,712.65
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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.