Finding the Fourth Proportional to 146,132.55, 201,683.25 and 85,722.75
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Solution
The fourth proportional to 146,132.55, 201,683.25 and 85,722.75 is: 118,309.32
Step by Step Solution
- Step 1: Write the proportion equation
146,132.55 : 201,683.25 = 85,722.75 : x - Step 2: Convert to fraction form
146,132.55/201,683.25 = 85,722.75/x - Step 3: Cross multiply
146,132.55x = 201,683.25 × 85,722.75 - Step 4: Simplify right side
146,132.55x = 17,288,842,818.94 - Step 5: Solve for x
x = 17,288,842,818.94/146,132.55 - Step 6: Final answer
x = 118,309.32
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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.