Finding the Fourth Proportional to 117,037.99, 161,512.34 and 66,061.45
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Solution
The fourth proportional to 117,037.99, 161,512.34 and 66,061.45 is: 91,164.75
Step by Step Solution
- Step 1: Write the proportion equation
117,037.99 : 161,512.34 = 66,061.45 : x - Step 2: Convert to fraction form
117,037.99/161,512.34 = 66,061.45/x - Step 3: Cross multiply
117,037.99x = 161,512.34 × 66,061.45 - Step 4: Simplify right side
117,037.99x = 10,669,739,373.29 - Step 5: Solve for x
x = 10,669,739,373.29/117,037.99 - Step 6: Final answer
x = 91,164.75
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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.