Finding the Fourth Proportional to 133,920.79, 200,875.42 and 40,423.75
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Solution
The fourth proportional to 133,920.79, 200,875.42 and 40,423.75 is: 60,633.88
Step by Step Solution
- Step 1: Write the proportion equation
133,920.79 : 200,875.42 = 40,423.75 : x - Step 2: Convert to fraction form
133,920.79/200,875.42 = 40,423.75/x - Step 3: Cross multiply
133,920.79x = 200,875.42 × 40,423.75 - Step 4: Simplify right side
133,920.79x = 8,120,137,759.23 - Step 5: Solve for x
x = 8,120,137,759.23/133,920.79 - Step 6: Final answer
x = 60,633.88
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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.