Finding the Fourth Proportional to 132,805.65, 183,266.45 and 72,374.99
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Solution
The fourth proportional to 132,805.65, 183,266.45 and 72,374.99 is: 99,874.57
Step by Step Solution
- Step 1: Write the proportion equation
132,805.65 : 183,266.45 = 72,374.99 : x - Step 2: Convert to fraction form
132,805.65/183,266.45 = 72,374.99/x - Step 3: Cross multiply
132,805.65x = 183,266.45 × 72,374.99 - Step 4: Simplify right side
132,805.65x = 13,263,907,582.38 - Step 5: Solve for x
x = 13,263,907,582.38/132,805.65 - Step 6: Final answer
x = 99,874.57
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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.