Finding the Fourth Proportional to 100,796.67, 139,099.28 and 62,541.99
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Solution
The fourth proportional to 100,796.67, 139,099.28 and 62,541.99 is: 86,307.87
Step by Step Solution
- Step 1: Write the proportion equation
100,796.67 : 139,099.28 = 62,541.99 : x - Step 2: Convert to fraction form
100,796.67/139,099.28 = 62,541.99/x - Step 3: Cross multiply
100,796.67x = 139,099.28 × 62,541.99 - Step 4: Simplify right side
100,796.67x = 8,699,545,466.06 - Step 5: Solve for x
x = 8,699,545,466.06/100,796.67 - Step 6: Final answer
x = 86,307.87
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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.