Finding the Fourth Proportional to 97,686.80, 146,530.20 and 87,837.20
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Solution
The fourth proportional to 97,686.80, 146,530.20 and 87,837.20 is: 131,755.80
Step by Step Solution
- Step 1: Write the proportion equation
97,686.80 : 146,530.20 = 87,837.20 : x - Step 2: Convert to fraction form
97,686.80/146,530.20 = 87,837.20/x - Step 3: Cross multiply
97,686.80x = 146,530.20 × 87,837.20 - Step 4: Simplify right side
97,686.80x = 12,870,802,483.44 - Step 5: Solve for x
x = 12,870,802,483.44/97,686.80 - Step 6: Final answer
x = 131,755.80
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1.5x scale
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.