Finding the Fourth Proportional to 129,727.71, 179,017.29 and 73,135.44
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Solution
The fourth proportional to 129,727.71, 179,017.29 and 73,135.44 is: 100,922.99
Step by Step Solution
- Step 1: Write the proportion equation
129,727.71 : 179,017.29 = 73,135.44 : x - Step 2: Convert to fraction form
129,727.71/179,017.29 = 73,135.44/x - Step 3: Cross multiply
129,727.71x = 179,017.29 × 73,135.44 - Step 4: Simplify right side
129,727.71x = 13,092,508,271.76 - Step 5: Solve for x
x = 13,092,508,271.76/129,727.71 - Step 6: Final answer
x = 100,922.99
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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.