Finding the Fourth Proportional to 134,860.80, 201,902.40 and 90,537.60
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Solution
The fourth proportional to 134,860.80, 201,902.40 and 90,537.60 is: 135,545.38
Step by Step Solution
- Step 1: Write the proportion equation
134,860.80 : 201,902.40 = 90,537.60 : x - Step 2: Convert to fraction form
134,860.80/201,902.40 = 90,537.60/x - Step 3: Cross multiply
134,860.80x = 201,902.40 × 90,537.60 - Step 4: Simplify right side
134,860.80x = 18,279,758,730.24 - Step 5: Solve for x
x = 18,279,758,730.24/134,860.80 - Step 6: Final answer
x = 135,545.38
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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.