Finding the Fourth Proportional to 145,631.79, 201,033.81 and 97,912.80
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Solution
The fourth proportional to 145,631.79, 201,033.81 and 97,912.80 is: 135,161.31
Step by Step Solution
- Step 1: Write the proportion equation
145,631.79 : 201,033.81 = 97,912.80 : x - Step 2: Convert to fraction form
145,631.79/201,033.81 = 97,912.80/x - Step 3: Cross multiply
145,631.79x = 201,033.81 × 97,912.80 - Step 4: Simplify right side
145,631.79x = 19,683,783,231.77 - Step 5: Solve for x
x = 19,683,783,231.77/145,631.79 - Step 6: Final answer
x = 135,161.31
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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.