Finding the Fourth Proportional to 130,660.65, 195,744.33 and 77,193.09
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Solution
The fourth proportional to 130,660.65, 195,744.33 and 77,193.09 is: 115,643.92
Step by Step Solution
- Step 1: Write the proportion equation
130,660.65 : 195,744.33 = 77,193.09 : x - Step 2: Convert to fraction form
130,660.65/195,744.33 = 77,193.09/x - Step 3: Cross multiply
130,660.65x = 195,744.33 × 77,193.09 - Step 4: Simplify right side
130,660.65x = 15,110,109,682.68 - Step 5: Solve for x
x = 15,110,109,682.68/130,660.65 - Step 6: Final answer
x = 115,643.92
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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.