Finding the Fourth Proportional to 116,703.36, 160,955.52 and 74,188.80
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Solution
The fourth proportional to 116,703.36, 160,955.52 and 74,188.80 is: 102,320.08
Step by Step Solution
- Step 1: Write the proportion equation
116,703.36 : 160,955.52 = 74,188.80 : x - Step 2: Convert to fraction form
116,703.36/160,955.52 = 74,188.80/x - Step 3: Cross multiply
116,703.36x = 160,955.52 × 74,188.80 - Step 4: Simplify right side
116,703.36x = 11,941,096,882.18 - Step 5: Solve for x
x = 11,941,096,882.18/116,703.36 - Step 6: Final answer
x = 102,320.08
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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.