Finding the Fourth Proportional to 127,998.68, 176,638.29 and 71,410.07
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Solution
The fourth proportional to 127,998.68, 176,638.29 and 71,410.07 is: 98,545.96
Step by Step Solution
- Step 1: Write the proportion equation
127,998.68 : 176,638.29 = 71,410.07 : x - Step 2: Convert to fraction form
127,998.68/176,638.29 = 71,410.07/x - Step 3: Cross multiply
127,998.68x = 176,638.29 × 71,410.07 - Step 4: Simplify right side
127,998.68x = 12,613,752,653.58 - Step 5: Solve for x
x = 12,613,752,653.58/127,998.68 - Step 6: Final answer
x = 98,545.96
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1.5x scale
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.