Finding the Fourth Proportional to 153,387.08, 211,619.40 and 88,821.08
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Solution
The fourth proportional to 153,387.08, 211,619.40 and 88,821.08 is: 122,541.37
Step by Step Solution
- Step 1: Write the proportion equation
153,387.08 : 211,619.40 = 88,821.08 : x - Step 2: Convert to fraction form
153,387.08/211,619.40 = 88,821.08/x - Step 3: Cross multiply
153,387.08x = 211,619.40 × 88,821.08 - Step 4: Simplify right side
153,387.08x = 18,796,263,656.95 - Step 5: Solve for x
x = 18,796,263,656.95/153,387.08 - Step 6: Final answer
x = 122,541.37
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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.