Finding the Fourth Proportional to 119,332.12, 178,886.40 and 40,391.08
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Solution
The fourth proportional to 119,332.12, 178,886.40 and 40,391.08 is: 60,548.79
Step by Step Solution
- Step 1: Write the proportion equation
119,332.12 : 178,886.40 = 40,391.08 : x - Step 2: Convert to fraction form
119,332.12/178,886.40 = 40,391.08/x - Step 3: Cross multiply
119,332.12x = 178,886.40 × 40,391.08 - Step 4: Simplify right side
119,332.12x = 7,225,414,893.31 - Step 5: Solve for x
x = 7,225,414,893.31/119,332.12 - Step 6: Final answer
x = 60,548.79
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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.