Finding the Fourth Proportional to 134,615.10, 201,922.65 and 103,122.30
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Solution
The fourth proportional to 134,615.10, 201,922.65 and 103,122.30 is: 154,683.45
Step by Step Solution
- Step 1: Write the proportion equation
134,615.10 : 201,922.65 = 103,122.30 : x - Step 2: Convert to fraction form
134,615.10/201,922.65 = 103,122.30/x - Step 3: Cross multiply
134,615.10x = 201,922.65 × 103,122.30 - Step 4: Simplify right side
134,615.10x = 20,822,728,090.10 - Step 5: Solve for x
x = 20,822,728,090.10/134,615.10 - Step 6: Final answer
x = 154,683.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.