Finding the Fourth Proportional to 135,854.40, 203,935.20 and 104,827.20
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Solution
The fourth proportional to 135,854.40, 203,935.20 and 104,827.20 is: 157,359.32
Step by Step Solution
- Step 1: Write the proportion equation
135,854.40 : 203,935.20 = 104,827.20 : x - Step 2: Convert to fraction form
135,854.40/203,935.20 = 104,827.20/x - Step 3: Cross multiply
135,854.40x = 203,935.20 × 104,827.20 - Step 4: Simplify right side
135,854.40x = 21,377,955,997.44 - Step 5: Solve for x
x = 21,377,955,997.44/135,854.40 - Step 6: Final answer
x = 157,359.32
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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.