Finding the Fourth Proportional to 135,023.40, 202,535.10 and 68,437.80
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Solution
The fourth proportional to 135,023.40, 202,535.10 and 68,437.80 is: 102,656.70
Step by Step Solution
- Step 1: Write the proportion equation
135,023.40 : 202,535.10 = 68,437.80 : x - Step 2: Convert to fraction form
135,023.40/202,535.10 = 68,437.80/x - Step 3: Cross multiply
135,023.40x = 202,535.10 × 68,437.80 - Step 4: Simplify right side
135,023.40x = 13,861,056,666.78 - Step 5: Solve for x
x = 13,861,056,666.78/135,023.40 - Step 6: Final answer
x = 102,656.70
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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.