Finding the Fourth Proportional to 112,509.23, 155,378.94 and 97,329.02
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Solution
The fourth proportional to 112,509.23, 155,378.94 and 97,329.02 is: 134,414.57
Step by Step Solution
- Step 1: Write the proportion equation
112,509.23 : 155,378.94 = 97,329.02 : x - Step 2: Convert to fraction form
112,509.23/155,378.94 = 97,329.02/x - Step 3: Cross multiply
112,509.23x = 155,378.94 × 97,329.02 - Step 4: Simplify right side
112,509.23x = 15,122,879,958.84 - Step 5: Solve for x
x = 15,122,879,958.84/112,509.23 - Step 6: Final answer
x = 134,414.57
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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.