Finding the Fourth Proportional to 113,572.13, 156,583.97 and 93,078.75
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Solution
The fourth proportional to 113,572.13, 156,583.97 and 93,078.75 is: 128,329.38
Step by Step Solution
- Step 1: Write the proportion equation
113,572.13 : 156,583.97 = 93,078.75 : x - Step 2: Convert to fraction form
113,572.13/156,583.97 = 93,078.75/x - Step 3: Cross multiply
113,572.13x = 156,583.97 × 93,078.75 - Step 4: Simplify right side
113,572.13x = 14,574,640,668.48 - Step 5: Solve for x
x = 14,574,640,668.48/113,572.13 - Step 6: Final answer
x = 128,329.38
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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.