Finding the Fourth Proportional to 135,903.30, 203,903.55 and 57,041.70
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Solution
The fourth proportional to 135,903.30, 203,903.55 and 57,041.70 is: 85,582.95
Step by Step Solution
- Step 1: Write the proportion equation
135,903.30 : 203,903.55 = 57,041.70 : x - Step 2: Convert to fraction form
135,903.30/203,903.55 = 57,041.70/x - Step 3: Cross multiply
135,903.30x = 203,903.55 × 57,041.70 - Step 4: Simplify right side
135,903.30x = 11,631,005,128.04 - Step 5: Solve for x
x = 11,631,005,128.04/135,903.30 - Step 6: Final answer
x = 85,582.95
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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.