Finding the Fourth Proportional to 118,930.96, 178,423.74 and 40,043.08
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Solution
The fourth proportional to 118,930.96, 178,423.74 and 40,043.08 is: 60,073.81
Step by Step Solution
- Step 1: Write the proportion equation
118,930.96 : 178,423.74 = 40,043.08 : x - Step 2: Convert to fraction form
118,930.96/178,423.74 = 40,043.08/x - Step 3: Cross multiply
118,930.96x = 178,423.74 × 40,043.08 - Step 4: Simplify right side
118,930.96x = 7,144,636,094.72 - Step 5: Solve for x
x = 7,144,636,094.72/118,930.96 - Step 6: Final answer
x = 60,073.81
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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.