Finding the Fourth Proportional to 137,884.50, 190,296.99 and 77,455.26
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Solution
The fourth proportional to 137,884.50, 190,296.99 and 77,455.26 is: 106,897.46
Step by Step Solution
- Step 1: Write the proportion equation
137,884.50 : 190,296.99 = 77,455.26 : x - Step 2: Convert to fraction form
137,884.50/190,296.99 = 77,455.26/x - Step 3: Cross multiply
137,884.50x = 190,296.99 × 77,455.26 - Step 4: Simplify right side
137,884.50x = 14,739,502,837.67 - Step 5: Solve for x
x = 14,739,502,837.67/137,884.50 - Step 6: Final answer
x = 106,897.46
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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.