Finding the Fourth Proportional to 106,907.76, 160,371.36 and 28,021.68
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Solution
The fourth proportional to 106,907.76, 160,371.36 and 28,021.68 is: 42,035.07
Step by Step Solution
- Step 1: Write the proportion equation
106,907.76 : 160,371.36 = 28,021.68 : x - Step 2: Convert to fraction form
106,907.76/160,371.36 = 28,021.68/x - Step 3: Cross multiply
106,907.76x = 160,371.36 × 28,021.68 - Step 4: Simplify right side
106,907.76x = 4,493,874,931.08 - Step 5: Solve for x
x = 4,493,874,931.08/106,907.76 - Step 6: Final answer
x = 42,035.07
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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.