Finding the Fourth Proportional to 99,148.59, 136,826.10 and 53,826.99
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Solution
The fourth proportional to 99,148.59, 136,826.10 and 53,826.99 is: 74,281.81
Step by Step Solution
- Step 1: Write the proportion equation
99,148.59 : 136,826.10 = 53,826.99 : x - Step 2: Convert to fraction form
99,148.59/136,826.10 = 53,826.99/x - Step 3: Cross multiply
99,148.59x = 136,826.10 × 53,826.99 - Step 4: Simplify right side
99,148.59x = 7,364,937,116.44 - Step 5: Solve for x
x = 7,364,937,116.44/99,148.59 - Step 6: Final answer
x = 74,281.81
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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.