Finding the Fourth Proportional to 135,026.10, 202,539.15 and 128,465.10
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Solution
The fourth proportional to 135,026.10, 202,539.15 and 128,465.10 is: 192,697.65
Step by Step Solution
- Step 1: Write the proportion equation
135,026.10 : 202,539.15 = 128,465.10 : x - Step 2: Convert to fraction form
135,026.10/202,539.15 = 128,465.10/x - Step 3: Cross multiply
135,026.10x = 202,539.15 × 128,465.10 - Step 4: Simplify right side
135,026.10x = 26,019,212,158.67 - Step 5: Solve for x
x = 26,019,212,158.67/135,026.10 - Step 6: Final answer
x = 192,697.65
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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.