Finding the Fourth Proportional to 135,903.02, 187,515.95 and 82,186.92
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Solution
The fourth proportional to 135,903.02, 187,515.95 and 82,186.92 is: 113,399.68
Step by Step Solution
- Step 1: Write the proportion equation
135,903.02 : 187,515.95 = 82,186.92 : x - Step 2: Convert to fraction form
135,903.02/187,515.95 = 82,186.92/x - Step 3: Cross multiply
135,903.02x = 187,515.95 × 82,186.92 - Step 4: Simplify right side
135,903.02x = 15,411,357,970.44 - Step 5: Solve for x
x = 15,411,357,970.44/135,903.02 - Step 6: Final answer
x = 113,399.68
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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.