Finding the Fourth Proportional to 104,895.81, 144,751.46 and 57,147.53
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Solution
The fourth proportional to 104,895.81, 144,751.46 and 57,147.53 is: 78,860.99
Step by Step Solution
- Step 1: Write the proportion equation
104,895.81 : 144,751.46 = 57,147.53 : x - Step 2: Convert to fraction form
104,895.81/144,751.46 = 57,147.53/x - Step 3: Cross multiply
104,895.81x = 144,751.46 × 57,147.53 - Step 4: Simplify right side
104,895.81x = 8,272,187,393.40 - Step 5: Solve for x
x = 8,272,187,393.40/104,895.81 - Step 6: Final answer
x = 78,860.99
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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.