Finding the Fourth Proportional to 133,018.61, 183,559.97 and 72,587.75
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Solution
The fourth proportional to 133,018.61, 183,559.97 and 72,587.75 is: 100,167.98
Step by Step Solution
- Step 1: Write the proportion equation
133,018.61 : 183,559.97 = 72,587.75 : x - Step 2: Convert to fraction form
133,018.61/183,559.97 = 72,587.75/x - Step 3: Cross multiply
133,018.61x = 183,559.97 × 72,587.75 - Step 4: Simplify right side
133,018.61x = 13,324,204,476.04 - Step 5: Solve for x
x = 13,324,204,476.04/133,018.61 - Step 6: Final answer
x = 100,167.98
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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.