Finding the Fourth Proportional to 117,686.25, 176,607.14 and 55,361.61
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Solution
The fourth proportional to 117,686.25, 176,607.14 and 55,361.61 is: 83,078.99
Step by Step Solution
- Step 1: Write the proportion equation
117,686.25 : 176,607.14 = 55,361.61 : x - Step 2: Convert to fraction form
117,686.25/176,607.14 = 55,361.61/x - Step 3: Cross multiply
117,686.25x = 176,607.14 × 55,361.61 - Step 4: Simplify right side
117,686.25x = 9,777,255,331.09 - Step 5: Solve for x
x = 9,777,255,331.09/117,686.25 - Step 6: Final answer
x = 83,078.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.