Finding the Fourth Proportional to 102,704.62, 153,990.97 and 42,774.65
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Solution
The fourth proportional to 102,704.62, 153,990.97 and 42,774.65 is: 64,134.50
Step by Step Solution
- Step 1: Write the proportion equation
102,704.62 : 153,990.97 = 42,774.65 : x - Step 2: Convert to fraction form
102,704.62/153,990.97 = 42,774.65/x - Step 3: Cross multiply
102,704.62x = 153,990.97 × 42,774.65 - Step 4: Simplify right side
102,704.62x = 6,586,909,844.91 - Step 5: Solve for x
x = 6,586,909,844.91/102,704.62 - Step 6: Final answer
x = 64,134.50
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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.