Finding the Fourth Proportional to 117,838.94, 162,615.02 and 64,124.08
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Solution
The fourth proportional to 117,838.94, 162,615.02 and 64,124.08 is: 88,489.75
Step by Step Solution
- Step 1: Write the proportion equation
117,838.94 : 162,615.02 = 64,124.08 : x - Step 2: Convert to fraction form
117,838.94/162,615.02 = 64,124.08/x - Step 3: Cross multiply
117,838.94x = 162,615.02 × 64,124.08 - Step 4: Simplify right side
117,838.94x = 10,427,538,551.68 - Step 5: Solve for x
x = 10,427,538,551.68/117,838.94 - Step 6: Final answer
x = 88,489.75
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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.