Finding the Fourth Proportional to 112,669.84, 155,473.58 and 67,338.80
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Solution
The fourth proportional to 112,669.84, 155,473.58 and 67,338.80 is: 92,921.09
Step by Step Solution
- Step 1: Write the proportion equation
112,669.84 : 155,473.58 = 67,338.80 : x - Step 2: Convert to fraction form
112,669.84/155,473.58 = 67,338.80/x - Step 3: Cross multiply
112,669.84x = 155,473.58 × 67,338.80 - Step 4: Simplify right side
112,669.84x = 10,469,404,308.90 - Step 5: Solve for x
x = 10,469,404,308.90/112,669.84 - Step 6: Final answer
x = 92,921.09
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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.