Finding the Fourth Proportional to 135,128.04, 202,683.78 and 40,358.52
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Solution
The fourth proportional to 135,128.04, 202,683.78 and 40,358.52 is: 60,535.31
Step by Step Solution
- Step 1: Write the proportion equation
135,128.04 : 202,683.78 = 40,358.52 : x - Step 2: Convert to fraction form
135,128.04/202,683.78 = 40,358.52/x - Step 3: Cross multiply
135,128.04x = 202,683.78 × 40,358.52 - Step 4: Simplify right side
135,128.04x = 8,180,017,388.81 - Step 5: Solve for x
x = 8,180,017,388.81/135,128.04 - Step 6: Final answer
x = 60,535.31
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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.