Finding the Fourth Proportional to 99,133.92, 136,771.50 and 63,344.88
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Solution
The fourth proportional to 99,133.92, 136,771.50 and 63,344.88 is: 87,394.65
Step by Step Solution
- Step 1: Write the proportion equation
99,133.92 : 136,771.50 = 63,344.88 : x - Step 2: Convert to fraction form
99,133.92/136,771.50 = 63,344.88/x - Step 3: Cross multiply
99,133.92x = 136,771.50 × 63,344.88 - Step 4: Simplify right side
99,133.92x = 8,663,774,254.92 - Step 5: Solve for x
x = 8,663,774,254.92/99,133.92 - Step 6: Final answer
x = 87,394.65
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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.