Finding the Fourth Proportional to 135,643.78, 203,482.01 and 65,473.75
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Solution
The fourth proportional to 135,643.78, 203,482.01 and 65,473.75 is: 98,218.51
Step by Step Solution
- Step 1: Write the proportion equation
135,643.78 : 203,482.01 = 65,473.75 : x - Step 2: Convert to fraction form
135,643.78/203,482.01 = 65,473.75/x - Step 3: Cross multiply
135,643.78x = 203,482.01 × 65,473.75 - Step 4: Simplify right side
135,643.78x = 13,322,730,252.24 - Step 5: Solve for x
x = 13,322,730,252.24/135,643.78 - Step 6: Final answer
x = 98,218.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.