Finding the Fourth Proportional to 117,257.24, 176,121.20 and 69,964.60
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Solution
The fourth proportional to 117,257.24, 176,121.20 and 69,964.60 is: 105,087.32
Step by Step Solution
- Step 1: Write the proportion equation
117,257.24 : 176,121.20 = 69,964.60 : x - Step 2: Convert to fraction form
117,257.24/176,121.20 = 69,964.60/x - Step 3: Cross multiply
117,257.24x = 176,121.20 × 69,964.60 - Step 4: Simplify right side
117,257.24x = 12,322,248,959.70 - Step 5: Solve for x
x = 12,322,248,959.70/117,257.24 - Step 6: Final answer
x = 105,087.32
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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.