Finding the Fourth Proportional to 134,782.10, 201,954.45 and 84,772.70
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Solution
The fourth proportional to 134,782.10, 201,954.45 and 84,772.70 is: 127,021.50
Step by Step Solution
- Step 1: Write the proportion equation
134,782.10 : 201,954.45 = 84,772.70 : x - Step 2: Convert to fraction form
134,782.10/201,954.45 = 84,772.70/x - Step 3: Cross multiply
134,782.10x = 201,954.45 × 84,772.70 - Step 4: Simplify right side
134,782.10x = 17,120,224,003.52 - Step 5: Solve for x
x = 17,120,224,003.52/134,782.10 - Step 6: Final answer
x = 127,021.50
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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.