Finding the Fourth Proportional to 135,024.60, 202,536.90 and 103,531.80
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Solution
The fourth proportional to 135,024.60, 202,536.90 and 103,531.80 is: 155,297.70
Step by Step Solution
- Step 1: Write the proportion equation
135,024.60 : 202,536.90 = 103,531.80 : x - Step 2: Convert to fraction form
135,024.60/202,536.90 = 103,531.80/x - Step 3: Cross multiply
135,024.60x = 202,536.90 × 103,531.80 - Step 4: Simplify right side
135,024.60x = 20,969,009,823.42 - Step 5: Solve for x
x = 20,969,009,823.42/135,024.60 - Step 6: Final answer
x = 155,297.70
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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.