Finding the Fourth Proportional to 149,573.20, 206,373.64 and 91,415.07
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Solution
The fourth proportional to 149,573.20, 206,373.64 and 91,415.07 is: 126,129.95
Step by Step Solution
- Step 1: Write the proportion equation
149,573.20 : 206,373.64 = 91,415.07 : x - Step 2: Convert to fraction form
149,573.20/206,373.64 = 91,415.07/x - Step 3: Cross multiply
149,573.20x = 206,373.64 × 91,415.07 - Step 4: Simplify right side
149,573.20x = 18,865,660,746.75 - Step 5: Solve for x
x = 18,865,660,746.75/149,573.20 - Step 6: Final answer
x = 126,129.95
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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.