Finding the Fourth Proportional to 136,106.24, 187,783.26 and 82,374.08
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Solution
The fourth proportional to 136,106.24, 187,783.26 and 82,374.08 is: 113,649.99
Step by Step Solution
- Step 1: Write the proportion equation
136,106.24 : 187,783.26 = 82,374.08 : x - Step 2: Convert to fraction form
136,106.24/187,783.26 = 82,374.08/x - Step 3: Cross multiply
136,106.24x = 187,783.26 × 82,374.08 - Step 4: Simplify right side
136,106.24x = 15,468,473,281.90 - Step 5: Solve for x
x = 15,468,473,281.90/136,106.24 - Step 6: Final answer
x = 113,649.99
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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.