Finding the Fourth Proportional to 117,628.56, 162,330.42 and 63,916.68
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Solution
The fourth proportional to 117,628.56, 162,330.42 and 63,916.68 is: 88,206.65
Step by Step Solution
- Step 1: Write the proportion equation
117,628.56 : 162,330.42 = 63,916.68 : x - Step 2: Convert to fraction form
117,628.56/162,330.42 = 63,916.68/x - Step 3: Cross multiply
117,628.56x = 162,330.42 × 63,916.68 - Step 4: Simplify right side
117,628.56x = 10,375,621,509.41 - Step 5: Solve for x
x = 10,375,621,509.41/117,628.56 - Step 6: Final answer
x = 88,206.65
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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.