Finding the Fourth Proportional to 103,535.99, 155,307.48 and 28,649.90
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Solution
The fourth proportional to 103,535.99, 155,307.48 and 28,649.90 is: 42,975.82
Step by Step Solution
- Step 1: Write the proportion equation
103,535.99 : 155,307.48 = 28,649.90 : x - Step 2: Convert to fraction form
103,535.99/155,307.48 = 28,649.90/x - Step 3: Cross multiply
103,535.99x = 155,307.48 × 28,649.90 - Step 4: Simplify right side
103,535.99x = 4,449,544,052.08 - Step 5: Solve for x
x = 4,449,544,052.08/103,535.99 - Step 6: Final answer
x = 42,975.82
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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.