Finding the Fourth Proportional to 115,359.99, 159,190.70 and 65,055.75
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Solution
The fourth proportional to 115,359.99, 159,190.70 and 65,055.75 is: 89,773.50
Step by Step Solution
- Step 1: Write the proportion equation
115,359.99 : 159,190.70 = 65,055.75 : x - Step 2: Convert to fraction form
115,359.99/159,190.70 = 65,055.75/x - Step 3: Cross multiply
115,359.99x = 159,190.70 × 65,055.75 - Step 4: Simplify right side
115,359.99x = 10,356,270,056.25 - Step 5: Solve for x
x = 10,356,270,056.25/115,359.99 - Step 6: Final answer
x = 89,773.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.