Finding the Fourth Proportional to 155,678.76, 214,753.68 and 95,278.68
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Solution
The fourth proportional to 155,678.76, 214,753.68 and 95,278.68 is: 131,433.78
Step by Step Solution
- Step 1: Write the proportion equation
155,678.76 : 214,753.68 = 95,278.68 : x - Step 2: Convert to fraction form
155,678.76/214,753.68 = 95,278.68/x - Step 3: Cross multiply
155,678.76x = 214,753.68 × 95,278.68 - Step 4: Simplify right side
155,678.76x = 20,461,447,155.54 - Step 5: Solve for x
x = 20,461,447,155.54/155,678.76 - Step 6: Final answer
x = 131,433.78
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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.