Finding the Fourth Proportional to 117,623.28, 162,318.16 and 63,909.12
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Solution
The fourth proportional to 117,623.28, 162,318.16 and 63,909.12 is: 88,193.52
Step by Step Solution
- Step 1: Write the proportion equation
117,623.28 : 162,318.16 = 63,909.12 : x - Step 2: Convert to fraction form
117,623.28/162,318.16 = 63,909.12/x - Step 3: Cross multiply
117,623.28x = 162,318.16 × 63,909.12 - Step 4: Simplify right side
117,623.28x = 10,373,610,765.62 - Step 5: Solve for x
x = 10,373,610,765.62/117,623.28 - Step 6: Final answer
x = 88,193.52
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1.5x scale
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.