Finding the Fourth Proportional to 99,037.69, 148,569.77 and 28,915.99
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Solution
The fourth proportional to 99,037.69, 148,569.77 and 28,915.99 is: 43,377.85
Step by Step Solution
- Step 1: Write the proportion equation
99,037.69 : 148,569.77 = 28,915.99 : x - Step 2: Convert to fraction form
99,037.69/148,569.77 = 28,915.99/x - Step 3: Cross multiply
99,037.69x = 148,569.77 × 28,915.99 - Step 4: Simplify right side
99,037.69x = 4,296,041,983.62 - Step 5: Solve for x
x = 4,296,041,983.62/99,037.69 - Step 6: Final answer
x = 43,377.85
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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.