Finding the Fourth Proportional to 99,088.82, 136,742.67 and 56,648.26
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Solution
The fourth proportional to 99,088.82, 136,742.67 and 56,648.26 is: 78,174.65
Step by Step Solution
- Step 1: Write the proportion equation
99,088.82 : 136,742.67 = 56,648.26 : x - Step 2: Convert to fraction form
99,088.82/136,742.67 = 56,648.26/x - Step 3: Cross multiply
99,088.82x = 136,742.67 × 56,648.26 - Step 4: Simplify right side
99,088.82x = 7,746,233,356.30 - Step 5: Solve for x
x = 7,746,233,356.30/99,088.82 - Step 6: Final answer
x = 78,174.65
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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.