Finding the Fourth Proportional to 117,679.84, 176,473.08 and 42,759.09
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Solution
The fourth proportional to 117,679.84, 176,473.08 and 42,759.09 is: 64,121.68
Step by Step Solution
- Step 1: Write the proportion equation
117,679.84 : 176,473.08 = 42,759.09 : x - Step 2: Convert to fraction form
117,679.84/176,473.08 = 42,759.09/x - Step 3: Cross multiply
117,679.84x = 176,473.08 × 42,759.09 - Step 4: Simplify right side
117,679.84x = 7,545,828,310.30 - Step 5: Solve for x
x = 7,545,828,310.30/117,679.84 - Step 6: Final answer
x = 64,121.68
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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.