Finding the Fourth Proportional to 136,408.05, 204,612.08 and 42,901.65
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Solution
The fourth proportional to 136,408.05, 204,612.08 and 42,901.65 is: 64,352.48
Step by Step Solution
- Step 1: Write the proportion equation
136,408.05 : 204,612.08 = 42,901.65 : x - Step 2: Convert to fraction form
136,408.05/204,612.08 = 42,901.65/x - Step 3: Cross multiply
136,408.05x = 204,612.08 × 42,901.65 - Step 4: Simplify right side
136,408.05x = 8,778,195,627.42 - Step 5: Solve for x
x = 8,778,195,627.42/136,408.05 - Step 6: Final answer
x = 64,352.48
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Similar ratio
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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.