Finding the Fourth Proportional to 136,122.84, 187,853.58 and 82,417.68
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Solution
The fourth proportional to 136,122.84, 187,853.58 and 82,417.68 is: 113,738.86
Step by Step Solution
- Step 1: Write the proportion equation
136,122.84 : 187,853.58 = 82,417.68 : x - Step 2: Convert to fraction form
136,122.84/187,853.58 = 82,417.68/x - Step 3: Cross multiply
136,122.84x = 187,853.58 × 82,417.68 - Step 4: Simplify right side
136,122.84x = 15,482,456,243.29 - Step 5: Solve for x
x = 15,482,456,243.29/136,122.84 - Step 6: Final answer
x = 113,738.86
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1.5x scale
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.