Finding the Fourth Proportional to 133,012.40, 183,556.87 and 72,583.09
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Solution
The fourth proportional to 133,012.40, 183,556.87 and 72,583.09 is: 100,164.53
Step by Step Solution
- Step 1: Write the proportion equation
133,012.40 : 183,556.87 = 72,583.09 : x - Step 2: Convert to fraction form
133,012.40/183,556.87 = 72,583.09/x - Step 3: Cross multiply
133,012.40x = 183,556.87 × 72,583.09 - Step 4: Simplify right side
133,012.40x = 13,323,124,174.98 - Step 5: Solve for x
x = 13,323,124,174.98/133,012.40 - Step 6: Final answer
x = 100,164.53
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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.