Finding the Fourth Proportional to 96,537.18, 133,006.55 and 72,228.68
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Solution
The fourth proportional to 96,537.18, 133,006.55 and 72,228.68 is: 99,514.89
Step by Step Solution
- Step 1: Write the proportion equation
96,537.18 : 133,006.55 = 72,228.68 : x - Step 2: Convert to fraction form
96,537.18/133,006.55 = 72,228.68/x - Step 3: Cross multiply
96,537.18x = 133,006.55 × 72,228.68 - Step 4: Simplify right side
96,537.18x = 9,606,886,511.68 - Step 5: Solve for x
x = 9,606,886,511.68/96,537.18 - Step 6: Final answer
x = 99,514.89
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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.