Finding the Fourth Proportional to 131,616.46, 181,630.74 and 74,267.96
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Solution
The fourth proportional to 131,616.46, 181,630.74 and 74,267.96 is: 102,489.80
Step by Step Solution
- Step 1: Write the proportion equation
131,616.46 : 181,630.74 = 74,267.96 : x - Step 2: Convert to fraction form
131,616.46/181,630.74 = 74,267.96/x - Step 3: Cross multiply
131,616.46x = 181,630.74 × 74,267.96 - Step 4: Simplify right side
131,616.46x = 13,489,344,533.09 - Step 5: Solve for x
x = 13,489,344,533.09/131,616.46 - Step 6: Final answer
x = 102,489.80
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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.