Finding the Fourth Proportional to 146,716.77, 202,386.40 and 85,455.74
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Solution
The fourth proportional to 146,716.77, 202,386.40 and 85,455.74 is: 117,880.72
Step by Step Solution
- Step 1: Write the proportion equation
146,716.77 : 202,386.40 = 85,455.74 : x - Step 2: Convert to fraction form
146,716.77/202,386.40 = 85,455.74/x - Step 3: Cross multiply
146,716.77x = 202,386.40 × 85,455.74 - Step 4: Simplify right side
146,716.77x = 17,295,079,111.31 - Step 5: Solve for x
x = 17,295,079,111.31/146,716.77 - Step 6: Final answer
x = 117,880.72
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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.