Finding the Fourth Proportional to 135,386.92, 203,312.70 and 83,103.40
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Solution
The fourth proportional to 135,386.92, 203,312.70 and 83,103.40 is: 124,797.70
Step by Step Solution
- Step 1: Write the proportion equation
135,386.92 : 203,312.70 = 83,103.40 : x - Step 2: Convert to fraction form
135,386.92/203,312.70 = 83,103.40/x - Step 3: Cross multiply
135,386.92x = 203,312.70 × 83,103.40 - Step 4: Simplify right side
135,386.92x = 16,895,976,633.18 - Step 5: Solve for x
x = 16,895,976,633.18/135,386.92 - Step 6: Final answer
x = 124,797.70
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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.