Finding the Fourth Proportional to 103,151.43, 154,529.51 and 69,813.99
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Solution
The fourth proportional to 103,151.43, 154,529.51 and 69,813.99 is: 104,587.22
Step by Step Solution
- Step 1: Write the proportion equation
103,151.43 : 154,529.51 = 69,813.99 : x - Step 2: Convert to fraction form
103,151.43/154,529.51 = 69,813.99/x - Step 3: Cross multiply
103,151.43x = 154,529.51 × 69,813.99 - Step 4: Simplify right side
103,151.43x = 10,788,321,316.78 - Step 5: Solve for x
x = 10,788,321,316.78/103,151.43 - Step 6: Final answer
x = 104,587.22
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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.