Finding the Fourth Proportional to 133,028.09, 183,582.65 and 72,602.62
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Solution
The fourth proportional to 133,028.09, 183,582.65 and 72,602.62 is: 100,193.74
Step by Step Solution
- Step 1: Write the proportion equation
133,028.09 : 183,582.65 = 72,602.62 : x - Step 2: Convert to fraction form
133,028.09/183,582.65 = 72,602.62/x - Step 3: Cross multiply
133,028.09x = 183,582.65 × 72,602.62 - Step 4: Simplify right side
133,028.09x = 13,328,581,376.54 - Step 5: Solve for x
x = 13,328,581,376.54/133,028.09 - Step 6: Final answer
x = 100,193.74
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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.