Finding the Fourth Proportional to 115,297.08, 159,183.98 and 72,335.44
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Solution
The fourth proportional to 115,297.08, 159,183.98 and 72,335.44 is: 99,869.34
Step by Step Solution
- Step 1: Write the proportion equation
115,297.08 : 159,183.98 = 72,335.44 : x - Step 2: Convert to fraction form
115,297.08/159,183.98 = 72,335.44/x - Step 3: Cross multiply
115,297.08x = 159,183.98 × 72,335.44 - Step 4: Simplify right side
115,297.08x = 11,514,643,234.25 - Step 5: Solve for x
x = 11,514,643,234.25/115,297.08 - Step 6: Final answer
x = 99,869.34
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1.5x scale
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.