Finding the Fourth Proportional to 133,187.13, 183,795.17 and 72,757.98
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Solution
The fourth proportional to 133,187.13, 183,795.17 and 72,757.98 is: 100,404.33
Step by Step Solution
- Step 1: Write the proportion equation
133,187.13 : 183,795.17 = 72,757.98 : x - Step 2: Convert to fraction form
133,187.13/183,795.17 = 72,757.98/x - Step 3: Cross multiply
133,187.13x = 183,795.17 × 72,757.98 - Step 4: Simplify right side
133,187.13x = 13,372,564,939.17 - Step 5: Solve for x
x = 13,372,564,939.17/133,187.13 - Step 6: Final answer
x = 100,404.33
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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.