Finding the Fourth Proportional to 145,894.63, 201,334.59 and 78,826.63
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Solution
The fourth proportional to 145,894.63, 201,334.59 and 78,826.63 is: 108,780.75
Step by Step Solution
- Step 1: Write the proportion equation
145,894.63 : 201,334.59 = 78,826.63 : x - Step 2: Convert to fraction form
145,894.63/201,334.59 = 78,826.63/x - Step 3: Cross multiply
145,894.63x = 201,334.59 × 78,826.63 - Step 4: Simplify right side
145,894.63x = 15,870,527,232.13 - Step 5: Solve for x
x = 15,870,527,232.13/145,894.63 - Step 6: Final answer
x = 108,780.75
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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.