Finding the Fourth Proportional to 151,228.08, 208,692.72 and 84,160.08
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Solution
The fourth proportional to 151,228.08, 208,692.72 and 84,160.08 is: 116,139.78
Step by Step Solution
- Step 1: Write the proportion equation
151,228.08 : 208,692.72 = 84,160.08 : x - Step 2: Convert to fraction form
151,228.08/208,692.72 = 84,160.08/x - Step 3: Cross multiply
151,228.08x = 208,692.72 × 84,160.08 - Step 4: Simplify right side
151,228.08x = 17,563,596,010.62 - Step 5: Solve for x
x = 17,563,596,010.62/151,228.08 - Step 6: Final answer
x = 116,139.78
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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.