Finding the Fourth Proportional to 98,106.88, 135,387.84 and 53,394.88
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Solution
The fourth proportional to 98,106.88, 135,387.84 and 53,394.88 is: 73,685.12
Step by Step Solution
- Step 1: Write the proportion equation
98,106.88 : 135,387.84 = 53,394.88 : x - Step 2: Convert to fraction form
98,106.88/135,387.84 = 53,394.88/x - Step 3: Cross multiply
98,106.88x = 135,387.84 × 53,394.88 - Step 4: Simplify right side
98,106.88x = 7,229,017,470.26 - Step 5: Solve for x
x = 7,229,017,470.26/98,106.88 - Step 6: Final answer
x = 73,685.12
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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.