Finding the Fourth Proportional to 145,914.91, 201,316.25 and 115,190.60
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Solution
The fourth proportional to 145,914.91, 201,316.25 and 115,190.60 is: 158,926.46
Step by Step Solution
- Step 1: Write the proportion equation
145,914.91 : 201,316.25 = 115,190.60 : x - Step 2: Convert to fraction form
145,914.91/201,316.25 = 115,190.60/x - Step 3: Cross multiply
145,914.91x = 201,316.25 × 115,190.60 - Step 4: Simplify right side
145,914.91x = 23,189,739,627.25 - Step 5: Solve for x
x = 23,189,739,627.25/145,914.91 - Step 6: Final answer
x = 158,926.46
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1.5x scale
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.