Finding the Fourth Proportional to 135,029.60, 202,544.40 and 103,536.80
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Solution
The fourth proportional to 135,029.60, 202,544.40 and 103,536.80 is: 155,305.20
Step by Step Solution
- Step 1: Write the proportion equation
135,029.60 : 202,544.40 = 103,536.80 : x - Step 2: Convert to fraction form
135,029.60/202,544.40 = 103,536.80/x - Step 3: Cross multiply
135,029.60x = 202,544.40 × 103,536.80 - Step 4: Simplify right side
135,029.60x = 20,970,799,033.92 - Step 5: Solve for x
x = 20,970,799,033.92/135,029.60 - Step 6: Final answer
x = 155,305.20
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1.5x scale
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.