Finding the Fourth Proportional to 140,369.07, 193,729.08 and 89,365.52
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Solution
The fourth proportional to 140,369.07, 193,729.08 and 89,365.52 is: 123,336.99
Step by Step Solution
- Step 1: Write the proportion equation
140,369.07 : 193,729.08 = 89,365.52 : x - Step 2: Convert to fraction form
140,369.07/193,729.08 = 89,365.52/x - Step 3: Cross multiply
140,369.07x = 193,729.08 × 89,365.52 - Step 4: Simplify right side
140,369.07x = 17,312,699,004.68 - Step 5: Solve for x
x = 17,312,699,004.68/140,369.07 - Step 6: Final answer
x = 123,336.99
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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.