Finding the Fourth Proportional to 135,889.61, 187,521.39 and 75,464.11
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Solution
The fourth proportional to 135,889.61, 187,521.39 and 75,464.11 is: 104,136.99
Step by Step Solution
- Step 1: Write the proportion equation
135,889.61 : 187,521.39 = 75,464.11 : x - Step 2: Convert to fraction form
135,889.61/187,521.39 = 75,464.11/x - Step 3: Cross multiply
135,889.61x = 187,521.39 × 75,464.11 - Step 4: Simplify right side
135,889.61x = 14,151,134,802.31 - Step 5: Solve for x
x = 14,151,134,802.31/135,889.61 - Step 6: Final answer
x = 104,136.99
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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.