Finding the Fourth Proportional to 135,334.71, 202,909.80 and 68,646.25
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Solution
The fourth proportional to 135,334.71, 202,909.80 and 68,646.25 is: 102,922.58
Step by Step Solution
- Step 1: Write the proportion equation
135,334.71 : 202,909.80 = 68,646.25 : x - Step 2: Convert to fraction form
135,334.71/202,909.80 = 68,646.25/x - Step 3: Cross multiply
135,334.71x = 202,909.80 × 68,646.25 - Step 4: Simplify right side
135,334.71x = 13,928,996,858.25 - Step 5: Solve for x
x = 13,928,996,858.25/135,334.71 - Step 6: Final answer
x = 102,922.58
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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.