Finding the Fourth Proportional to 88,415.80, 132,623.70 and 70,919.80
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Solution
The fourth proportional to 88,415.80, 132,623.70 and 70,919.80 is: 106,379.70
Step by Step Solution
- Step 1: Write the proportion equation
88,415.80 : 132,623.70 = 70,919.80 : x - Step 2: Convert to fraction form
88,415.80/132,623.70 = 70,919.80/x - Step 3: Cross multiply
88,415.80x = 132,623.70 × 70,919.80 - Step 4: Simplify right side
88,415.80x = 9,405,646,279.26 - Step 5: Solve for x
x = 9,405,646,279.26/88,415.80 - Step 6: Final answer
x = 106,379.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.