Finding the Fourth Proportional to 145,640.28, 201,045.56 and 97,921.32
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Solution
The fourth proportional to 145,640.28, 201,045.56 and 97,921.32 is: 135,173.09
Step by Step Solution
- Step 1: Write the proportion equation
145,640.28 : 201,045.56 = 97,921.32 : x - Step 2: Convert to fraction form
145,640.28/201,045.56 = 97,921.32/x - Step 3: Cross multiply
145,640.28x = 201,045.56 × 97,921.32 - Step 4: Simplify right side
145,640.28x = 19,686,646,615.34 - Step 5: Solve for x
x = 19,686,646,615.34/145,640.28 - Step 6: Final answer
x = 135,173.09
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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.