Finding the Fourth Proportional to 104,172.68, 143,663.80 and 68,349.08
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Solution
The fourth proportional to 104,172.68, 143,663.80 and 68,349.08 is: 94,259.73
Step by Step Solution
- Step 1: Write the proportion equation
104,172.68 : 143,663.80 = 68,349.08 : x - Step 2: Convert to fraction form
104,172.68/143,663.80 = 68,349.08/x - Step 3: Cross multiply
104,172.68x = 143,663.80 × 68,349.08 - Step 4: Simplify right side
104,172.68x = 9,819,288,559.30 - Step 5: Solve for x
x = 9,819,288,559.30/104,172.68 - Step 6: Final answer
x = 94,259.73
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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.