Finding the Fourth Proportional to 129,653.80, 194,048.70 and 94,013.80
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Solution
The fourth proportional to 129,653.80, 194,048.70 and 94,013.80 is: 140,707.45
Step by Step Solution
- Step 1: Write the proportion equation
129,653.80 : 194,048.70 = 94,013.80 : x - Step 2: Convert to fraction form
129,653.80/194,048.70 = 94,013.80/x - Step 3: Cross multiply
129,653.80x = 194,048.70 × 94,013.80 - Step 4: Simplify right side
129,653.80x = 18,243,255,672.06 - Step 5: Solve for x
x = 18,243,255,672.06/129,653.80 - Step 6: Final answer
x = 140,707.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.