Finding the Fourth Proportional to 109,357.20, 151,002.36 and 69,135.84
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Solution
The fourth proportional to 109,357.20, 151,002.36 and 69,135.84 is: 95,463.99
Step by Step Solution
- Step 1: Write the proportion equation
109,357.20 : 151,002.36 = 69,135.84 : x - Step 2: Convert to fraction form
109,357.20/151,002.36 = 69,135.84/x - Step 3: Cross multiply
109,357.20x = 151,002.36 × 69,135.84 - Step 4: Simplify right side
109,357.20x = 10,439,675,000.58 - Step 5: Solve for x
x = 10,439,675,000.58/109,357.20 - Step 6: Final answer
x = 95,463.99
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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.