Finding the Fourth Proportional to 119,335.12, 178,890.90 and 40,394.08
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Solution
The fourth proportional to 119,335.12, 178,890.90 and 40,394.08 is: 60,553.28
Step by Step Solution
- Step 1: Write the proportion equation
119,335.12 : 178,890.90 = 40,394.08 : x - Step 2: Convert to fraction form
119,335.12/178,890.90 = 40,394.08/x - Step 3: Cross multiply
119,335.12x = 178,890.90 × 40,394.08 - Step 4: Simplify right side
119,335.12x = 7,226,133,325.87 - Step 5: Solve for x
x = 7,226,133,325.87/119,335.12 - Step 6: Final answer
x = 60,553.28
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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.