Finding the Fourth Proportional to 153,394.12, 211,698.18 and 89,727.88
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Solution
The fourth proportional to 153,394.12, 211,698.18 and 89,727.88 is: 123,832.84
Step by Step Solution
- Step 1: Write the proportion equation
153,394.12 : 211,698.18 = 89,727.88 : x - Step 2: Convert to fraction form
153,394.12/211,698.18 = 89,727.88/x - Step 3: Cross multiply
153,394.12x = 211,698.18 × 89,727.88 - Step 4: Simplify right side
153,394.12x = 18,995,228,891.26 - Step 5: Solve for x
x = 18,995,228,891.26/153,394.12 - Step 6: Final answer
x = 123,832.84
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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.