Finding the Fourth Proportional to 130,122.40, 195,475.20 and 124,808.80
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Solution
The fourth proportional to 130,122.40, 195,475.20 and 124,808.80 is: 187,492.89
Step by Step Solution
- Step 1: Write the proportion equation
130,122.40 : 195,475.20 = 124,808.80 : x - Step 2: Convert to fraction form
130,122.40/195,475.20 = 124,808.80/x - Step 3: Cross multiply
130,122.40x = 195,475.20 × 124,808.80 - Step 4: Simplify right side
130,122.40x = 24,397,025,141.76 - Step 5: Solve for x
x = 24,397,025,141.76/130,122.40 - Step 6: Final answer
x = 187,492.89
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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.