Finding the Fourth Proportional to 149,711.88, 206,602.38 and 86,062.08
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Solution
The fourth proportional to 149,711.88, 206,602.38 and 86,062.08 is: 118,765.66
Step by Step Solution
- Step 1: Write the proportion equation
149,711.88 : 206,602.38 = 86,062.08 : x - Step 2: Convert to fraction form
149,711.88/206,602.38 = 86,062.08/x - Step 3: Cross multiply
149,711.88x = 206,602.38 × 86,062.08 - Step 4: Simplify right side
149,711.88x = 17,780,630,555.75 - Step 5: Solve for x
x = 17,780,630,555.75/149,711.88 - Step 6: Final answer
x = 118,765.66
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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.