Finding the Fourth Proportional to 135,425.36, 186,887.52 and 74,994.68
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Solution
The fourth proportional to 135,425.36, 186,887.52 and 74,994.68 is: 103,492.95
Step by Step Solution
- Step 1: Write the proportion equation
135,425.36 : 186,887.52 = 74,994.68 : x - Step 2: Convert to fraction form
135,425.36/186,887.52 = 74,994.68/x - Step 3: Cross multiply
135,425.36x = 186,887.52 × 74,994.68 - Step 4: Simplify right side
135,425.36x = 14,015,569,758.39 - Step 5: Solve for x
x = 14,015,569,758.39/135,425.36 - Step 6: Final answer
x = 103,492.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.