Finding the Fourth Proportional to 135,562.40, 187,076.13 and 75,136.94
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Solution
The fourth proportional to 135,562.40, 187,076.13 and 75,136.94 is: 103,688.99
Step by Step Solution
- Step 1: Write the proportion equation
135,562.40 : 187,076.13 = 75,136.94 : x - Step 2: Convert to fraction form
135,562.40/187,076.13 = 75,136.94/x - Step 3: Cross multiply
135,562.40x = 187,076.13 × 75,136.94 - Step 4: Simplify right side
135,562.40x = 14,056,327,955.24 - Step 5: Solve for x
x = 14,056,327,955.24/135,562.40 - Step 6: Final answer
x = 103,688.99
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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.