Finding the Fourth Proportional to 130,161.79, 195,193.41 and 70,965.24
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Solution
The fourth proportional to 130,161.79, 195,193.41 and 70,965.24 is: 106,420.99
Step by Step Solution
- Step 1: Write the proportion equation
130,161.79 : 195,193.41 = 70,965.24 : x - Step 2: Convert to fraction form
130,161.79/195,193.41 = 70,965.24/x - Step 3: Cross multiply
130,161.79x = 195,193.41 × 70,965.24 - Step 4: Simplify right side
130,161.79x = 13,851,947,187.07 - Step 5: Solve for x
x = 13,851,947,187.07/130,161.79 - Step 6: Final answer
x = 106,420.99
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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.