Finding the Fourth Proportional to 157,069.80, 235,525.82 and 72,757.48
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Solution
The fourth proportional to 157,069.80, 235,525.82 and 72,757.48 is: 109,099.68
Step by Step Solution
- Step 1: Write the proportion equation
157,069.80 : 235,525.82 = 72,757.48 : x - Step 2: Convert to fraction form
157,069.80/235,525.82 = 72,757.48/x - Step 3: Cross multiply
157,069.80x = 235,525.82 × 72,757.48 - Step 4: Simplify right side
157,069.80x = 17,136,265,138.13 - Step 5: Solve for x
x = 17,136,265,138.13/157,069.80 - Step 6: Final answer
x = 109,099.68
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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.