Finding the Fourth Proportional to 145,217.79, 217,848.87 and 74,101.68
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Solution
The fourth proportional to 145,217.79, 217,848.87 and 74,101.68 is: 111,163.84
Step by Step Solution
- Step 1: Write the proportion equation
145,217.79 : 217,848.87 = 74,101.68 : x - Step 2: Convert to fraction form
145,217.79/217,848.87 = 74,101.68/x - Step 3: Cross multiply
145,217.79x = 217,848.87 × 74,101.68 - Step 4: Simplify right side
145,217.79x = 16,142,967,253.10 - Step 5: Solve for x
x = 16,142,967,253.10/145,217.79 - Step 6: Final answer
x = 111,163.84
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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.