Finding the Fourth Proportional to 131,750.19, 181,692.45 and 121,964.58
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Solution
The fourth proportional to 131,750.19, 181,692.45 and 121,964.58 is: 168,197.43
Step by Step Solution
- Step 1: Write the proportion equation
131,750.19 : 181,692.45 = 121,964.58 : x - Step 2: Convert to fraction form
131,750.19/181,692.45 = 121,964.58/x - Step 3: Cross multiply
131,750.19x = 181,692.45 × 121,964.58 - Step 4: Simplify right side
131,750.19x = 22,160,043,353.42 - Step 5: Solve for x
x = 22,160,043,353.42/131,750.19 - Step 6: Final answer
x = 168,197.43
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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.