Finding the Fourth Proportional to 137,153.16, 205,409.84 and 133,368.80
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Solution
The fourth proportional to 137,153.16, 205,409.84 and 133,368.80 is: 199,742.11
Step by Step Solution
- Step 1: Write the proportion equation
137,153.16 : 205,409.84 = 133,368.80 : x - Step 2: Convert to fraction form
137,153.16/205,409.84 = 133,368.80/x - Step 3: Cross multiply
137,153.16x = 205,409.84 × 133,368.80 - Step 4: Simplify right side
137,153.16x = 27,395,262,175.10 - Step 5: Solve for x
x = 27,395,262,175.10/137,153.16 - Step 6: Final answer
x = 199,742.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.