Finding the Fourth Proportional to 90,178.74, 135,138.71 and 50,652.68
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Solution
The fourth proportional to 90,178.74, 135,138.71 and 50,652.68 is: 75,906.33
Step by Step Solution
- Step 1: Write the proportion equation
90,178.74 : 135,138.71 = 50,652.68 : x - Step 2: Convert to fraction form
90,178.74/135,138.71 = 50,652.68/x - Step 3: Cross multiply
90,178.74x = 135,138.71 × 50,652.68 - Step 4: Simplify right side
90,178.74x = 6,845,137,284.18 - Step 5: Solve for x
x = 6,845,137,284.18/90,178.74 - Step 6: Final answer
x = 75,906.33
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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.