Finding the Fourth Proportional to 163,324.32, 225,411.98 and 99,699.09
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Solution
The fourth proportional to 163,324.32, 225,411.98 and 99,699.09 is: 137,599.65
Step by Step Solution
- Step 1: Write the proportion equation
163,324.32 : 225,411.98 = 99,699.09 : x - Step 2: Convert to fraction form
163,324.32/225,411.98 = 99,699.09/x - Step 3: Cross multiply
163,324.32x = 225,411.98 × 99,699.09 - Step 4: Simplify right side
163,324.32x = 22,473,368,782.60 - Step 5: Solve for x
x = 22,473,368,782.60/163,324.32 - Step 6: Final answer
x = 137,599.65
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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.