Finding the Fourth Proportional to 117,474.16, 162,112.76 and 63,758.70
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Solution
The fourth proportional to 117,474.16, 162,112.76 and 63,758.70 is: 87,986.15
Step by Step Solution
- Step 1: Write the proportion equation
117,474.16 : 162,112.76 = 63,758.70 : x - Step 2: Convert to fraction form
117,474.16/162,112.76 = 63,758.70/x - Step 3: Cross multiply
117,474.16x = 162,112.76 × 63,758.70 - Step 4: Simplify right side
117,474.16x = 10,336,098,990.41 - Step 5: Solve for x
x = 10,336,098,990.41/117,474.16 - Step 6: Final answer
x = 87,986.15
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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.