Finding the Fourth Proportional to 135,158.31, 202,820.84 and 68,646.17
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Solution
The fourth proportional to 135,158.31, 202,820.84 and 68,646.17 is: 103,011.61
Step by Step Solution
- Step 1: Write the proportion equation
135,158.31 : 202,820.84 = 68,646.17 : x - Step 2: Convert to fraction form
135,158.31/202,820.84 = 68,646.17/x - Step 3: Cross multiply
135,158.31x = 202,820.84 × 68,646.17 - Step 4: Simplify right side
135,158.31x = 13,922,874,669.56 - Step 5: Solve for x
x = 13,922,874,669.56/135,158.31 - Step 6: Final answer
x = 103,011.61
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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.