Finding the Fourth Proportional to 135,551.11, 187,061.60 and 75,122.75
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Solution
The fourth proportional to 135,551.11, 187,061.60 and 75,122.75 is: 103,669.99
Step by Step Solution
- Step 1: Write the proportion equation
135,551.11 : 187,061.60 = 75,122.75 : x - Step 2: Convert to fraction form
135,551.11/187,061.60 = 75,122.75/x - Step 3: Cross multiply
135,551.11x = 187,061.60 × 75,122.75 - Step 4: Simplify right side
135,551.11x = 14,052,581,811.40 - Step 5: Solve for x
x = 14,052,581,811.40/135,551.11 - Step 6: Final answer
x = 103,669.99
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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.