Finding the Fourth Proportional to 129,797.87, 179,202.14 and 99,525.03
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Solution
The fourth proportional to 129,797.87, 179,202.14 and 99,525.03 is: 137,406.71
Step by Step Solution
- Step 1: Write the proportion equation
129,797.87 : 179,202.14 = 99,525.03 : x - Step 2: Convert to fraction form
129,797.87/179,202.14 = 99,525.03/x - Step 3: Cross multiply
129,797.87x = 179,202.14 × 99,525.03 - Step 4: Simplify right side
129,797.87x = 17,835,096,965.93 - Step 5: Solve for x
x = 17,835,096,965.93/129,797.87 - Step 6: Final answer
x = 137,406.71
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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.