Finding the Fourth Proportional to 130,487.21, 195,659.58 and 39,289.31
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Solution
The fourth proportional to 130,487.21, 195,659.58 and 39,289.31 is: 58,912.52
Step by Step Solution
- Step 1: Write the proportion equation
130,487.21 : 195,659.58 = 39,289.31 : x - Step 2: Convert to fraction form
130,487.21/195,659.58 = 39,289.31/x - Step 3: Cross multiply
130,487.21x = 195,659.58 × 39,289.31 - Step 4: Simplify right side
130,487.21x = 7,687,329,795.85 - Step 5: Solve for x
x = 7,687,329,795.85/130,487.21 - Step 6: Final answer
x = 58,912.52
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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.