Finding the Fourth Proportional to 130,113.24, 179,704.08 and 87,597.96
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Solution
The fourth proportional to 130,113.24, 179,704.08 and 87,597.96 is: 120,984.70
Step by Step Solution
- Step 1: Write the proportion equation
130,113.24 : 179,704.08 = 87,597.96 : x - Step 2: Convert to fraction form
130,113.24/179,704.08 = 87,597.96/x - Step 3: Cross multiply
130,113.24x = 179,704.08 × 87,597.96 - Step 4: Simplify right side
130,113.24x = 15,741,710,811.68 - Step 5: Solve for x
x = 15,741,710,811.68/130,113.24 - Step 6: Final answer
x = 120,984.70
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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.