Finding the Fourth Proportional to 141,376.20, 195,111.01 and 77,725.99
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Solution
The fourth proportional to 141,376.20, 195,111.01 and 77,725.99 is: 107,268.38
Step by Step Solution
- Step 1: Write the proportion equation
141,376.20 : 195,111.01 = 77,725.99 : x - Step 2: Convert to fraction form
141,376.20/195,111.01 = 77,725.99/x - Step 3: Cross multiply
141,376.20x = 195,111.01 × 77,725.99 - Step 4: Simplify right side
141,376.20x = 15,165,196,412.15 - Step 5: Solve for x
x = 15,165,196,412.15/141,376.20 - Step 6: Final answer
x = 107,268.38
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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.