Finding the Fourth Proportional to 136,449.68, 204,865.80 and 69,937.52
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Solution
The fourth proportional to 136,449.68, 204,865.80 and 69,937.52 is: 105,004.32
Step by Step Solution
- Step 1: Write the proportion equation
136,449.68 : 204,865.80 = 69,937.52 : x - Step 2: Convert to fraction form
136,449.68/204,865.80 = 69,937.52/x - Step 3: Cross multiply
136,449.68x = 204,865.80 × 69,937.52 - Step 4: Simplify right side
136,449.68x = 14,327,805,984.82 - Step 5: Solve for x
x = 14,327,805,984.82/136,449.68 - Step 6: Final answer
x = 105,004.32
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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.