Finding the Fourth Proportional to 154,700.66, 213,475.82 and 91,029.80
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Solution
The fourth proportional to 154,700.66, 213,475.82 and 91,029.80 is: 125,614.60
Step by Step Solution
- Step 1: Write the proportion equation
154,700.66 : 213,475.82 = 91,029.80 : x - Step 2: Convert to fraction form
154,700.66/213,475.82 = 91,029.80/x - Step 3: Cross multiply
154,700.66x = 213,475.82 × 91,029.80 - Step 4: Simplify right side
154,700.66x = 19,432,661,199.44 - Step 5: Solve for x
x = 19,432,661,199.44/154,700.66 - Step 6: Final answer
x = 125,614.60
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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.