Finding the Fourth Proportional to 134,121.40, 201,209.10 and 39,351.40
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Solution
The fourth proportional to 134,121.40, 201,209.10 and 39,351.40 is: 59,035.02
Step by Step Solution
- Step 1: Write the proportion equation
134,121.40 : 201,209.10 = 39,351.40 : x - Step 2: Convert to fraction form
134,121.40/201,209.10 = 39,351.40/x - Step 3: Cross multiply
134,121.40x = 201,209.10 × 39,351.40 - Step 4: Simplify right side
134,121.40x = 7,917,859,777.74 - Step 5: Solve for x
x = 7,917,859,777.74/134,121.40 - Step 6: Final answer
x = 59,035.02
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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.