Finding the Fourth Proportional to 130,028.74, 179,452.39 and 79,037.62
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Solution
The fourth proportional to 130,028.74, 179,452.39 and 79,037.62 is: 109,079.65
Step by Step Solution
- Step 1: Write the proportion equation
130,028.74 : 179,452.39 = 79,037.62 : x - Step 2: Convert to fraction form
130,028.74/179,452.39 = 79,037.62/x - Step 3: Cross multiply
130,028.74x = 179,452.39 × 79,037.62 - Step 4: Simplify right side
130,028.74x = 14,183,489,808.91 - Step 5: Solve for x
x = 14,183,489,808.91/130,028.74 - Step 6: Final answer
x = 109,079.65
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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.