Finding the Fourth Proportional to 130,391.10, 195,611.76 and 55,509.84
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Solution
The fourth proportional to 130,391.10, 195,611.76 and 55,509.84 is: 83,275.45
Step by Step Solution
- Step 1: Write the proportion equation
130,391.10 : 195,611.76 = 55,509.84 : x - Step 2: Convert to fraction form
130,391.10/195,611.76 = 55,509.84/x - Step 3: Cross multiply
130,391.10x = 195,611.76 × 55,509.84 - Step 4: Simplify right side
130,391.10x = 10,858,377,499.72 - Step 5: Solve for x
x = 10,858,377,499.72/130,391.10 - Step 6: Final answer
x = 83,275.45
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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.