Finding the Fourth Proportional to 130,578.99, 195,837.04 and 83,122.91
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Solution
The fourth proportional to 130,578.99, 195,837.04 and 83,122.91 is: 124,664.35
Step by Step Solution
- Step 1: Write the proportion equation
130,578.99 : 195,837.04 = 83,122.91 : x - Step 2: Convert to fraction form
130,578.99/195,837.04 = 83,122.91/x - Step 3: Cross multiply
130,578.99x = 195,837.04 × 83,122.91 - Step 4: Simplify right side
130,578.99x = 16,278,544,509.69 - Step 5: Solve for x
x = 16,278,544,509.69/130,578.99 - Step 6: Final answer
x = 124,664.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.