Finding the Fourth Proportional to 163,920.41, 226,220.60 and 99,395.81
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Solution
The fourth proportional to 163,920.41, 226,220.60 and 99,395.81 is: 137,172.54
Step by Step Solution
- Step 1: Write the proportion equation
163,920.41 : 226,220.60 = 99,395.81 : x - Step 2: Convert to fraction form
163,920.41/226,220.60 = 99,395.81/x - Step 3: Cross multiply
163,920.41x = 226,220.60 × 99,395.81 - Step 4: Simplify right side
163,920.41x = 22,485,378,893.07 - Step 5: Solve for x
x = 22,485,378,893.07/163,920.41 - Step 6: Final answer
x = 137,172.54
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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.