Finding the Fourth Proportional to 126,792.84, 174,972.57 and 69,431.52
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Solution
The fourth proportional to 126,792.84, 174,972.57 and 69,431.52 is: 95,814.65
Step by Step Solution
- Step 1: Write the proportion equation
126,792.84 : 174,972.57 = 69,431.52 : x - Step 2: Convert to fraction form
126,792.84/174,972.57 = 69,431.52/x - Step 3: Cross multiply
126,792.84x = 174,972.57 × 69,431.52 - Step 4: Simplify right side
126,792.84x = 12,148,611,493.41 - Step 5: Solve for x
x = 12,148,611,493.41/126,792.84 - Step 6: Final answer
x = 95,814.65
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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.