Finding the Fourth Proportional to 149,790.42, 206,513.70 and 115,373.76
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Solution
The fourth proportional to 149,790.42, 206,513.70 and 115,373.76 is: 159,063.99
Step by Step Solution
- Step 1: Write the proportion equation
149,790.42 : 206,513.70 = 115,373.76 : x - Step 2: Convert to fraction form
149,790.42/206,513.70 = 115,373.76/x - Step 3: Cross multiply
149,790.42x = 206,513.70 × 115,373.76 - Step 4: Simplify right side
149,790.42x = 23,826,262,060.51 - Step 5: Solve for x
x = 23,826,262,060.51/149,790.42 - Step 6: Final answer
x = 159,063.99
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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.