Finding the Fourth Proportional to 153,275.08, 211,517.56 and 86,207.08
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Solution
The fourth proportional to 153,275.08, 211,517.56 and 86,207.08 is: 118,964.62
Step by Step Solution
- Step 1: Write the proportion equation
153,275.08 : 211,517.56 = 86,207.08 : x - Step 2: Convert to fraction form
153,275.08/211,517.56 = 86,207.08/x - Step 3: Cross multiply
153,275.08x = 211,517.56 × 86,207.08 - Step 4: Simplify right side
153,275.08x = 18,234,311,216.32 - Step 5: Solve for x
x = 18,234,311,216.32/153,275.08 - Step 6: Final answer
x = 118,964.62
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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.