Finding the Fourth Proportional to 117,704.96, 162,378.88 and 69,931.52
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Solution
The fourth proportional to 117,704.96, 162,378.88 and 69,931.52 is: 96,473.44
Step by Step Solution
- Step 1: Write the proportion equation
117,704.96 : 162,378.88 = 69,931.52 : x - Step 2: Convert to fraction form
117,704.96/162,378.88 = 69,931.52/x - Step 3: Cross multiply
117,704.96x = 162,378.88 × 69,931.52 - Step 4: Simplify right side
117,704.96x = 11,355,401,894.30 - Step 5: Solve for x
x = 11,355,401,894.30/117,704.96 - Step 6: Final answer
x = 96,473.44
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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.