Finding the Fourth Proportional to 102,652.20, 153,956.70 and 43,489.80
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Solution
The fourth proportional to 102,652.20, 153,956.70 and 43,489.80 is: 65,225.55
Step by Step Solution
- Step 1: Write the proportion equation
102,652.20 : 153,956.70 = 43,489.80 : x - Step 2: Convert to fraction form
102,652.20/153,956.70 = 43,489.80/x - Step 3: Cross multiply
102,652.20x = 153,956.70 × 43,489.80 - Step 4: Simplify right side
102,652.20x = 6,695,546,091.66 - Step 5: Solve for x
x = 6,695,546,091.66/102,652.20 - Step 6: Final answer
x = 65,225.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.