Finding the Fourth Proportional to 131,211.84, 181,054.08 and 74,616.96
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Solution
The fourth proportional to 131,211.84, 181,054.08 and 74,616.96 is: 102,961.02
Step by Step Solution
- Step 1: Write the proportion equation
131,211.84 : 181,054.08 = 74,616.96 : x - Step 2: Convert to fraction form
131,211.84/181,054.08 = 74,616.96/x - Step 3: Cross multiply
131,211.84x = 181,054.08 × 74,616.96 - Step 4: Simplify right side
131,211.84x = 13,509,705,045.20 - Step 5: Solve for x
x = 13,509,705,045.20/131,211.84 - Step 6: Final answer
x = 102,961.02
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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.