Finding the Fourth Proportional to 115,894.19, 159,915.71 and 67,504.08
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Solution
The fourth proportional to 115,894.19, 159,915.71 and 67,504.08 is: 93,144.99
Step by Step Solution
- Step 1: Write the proportion equation
115,894.19 : 159,915.71 = 67,504.08 : x - Step 2: Convert to fraction form
115,894.19/159,915.71 = 67,504.08/x - Step 3: Cross multiply
115,894.19x = 159,915.71 × 67,504.08 - Step 4: Simplify right side
115,894.19x = 10,794,962,823.34 - Step 5: Solve for x
x = 10,794,962,823.34/115,894.19 - Step 6: Final answer
x = 93,144.99
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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.