Finding the Fourth Proportional to 133,239.09, 183,880.43 and 75,880.84
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Solution
The fourth proportional to 133,239.09, 183,880.43 and 75,880.84 is: 104,721.53
Step by Step Solution
- Step 1: Write the proportion equation
133,239.09 : 183,880.43 = 75,880.84 : x - Step 2: Convert to fraction form
133,239.09/183,880.43 = 75,880.84/x - Step 3: Cross multiply
133,239.09x = 183,880.43 × 75,880.84 - Step 4: Simplify right side
133,239.09x = 13,953,001,487.96 - Step 5: Solve for x
x = 13,953,001,487.96/133,239.09 - Step 6: Final answer
x = 104,721.53
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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.