Finding the Fourth Proportional to 118,408.07, 177,640.02 and 38,439.88
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Solution
The fourth proportional to 118,408.07, 177,640.02 and 38,439.88 is: 57,668.88
Step by Step Solution
- Step 1: Write the proportion equation
118,408.07 : 177,640.02 = 38,439.88 : x - Step 2: Convert to fraction form
118,408.07/177,640.02 = 38,439.88/x - Step 3: Cross multiply
118,408.07x = 177,640.02 × 38,439.88 - Step 4: Simplify right side
118,408.07x = 6,828,460,607.90 - Step 5: Solve for x
x = 6,828,460,607.90/118,408.07 - Step 6: Final answer
x = 57,668.88
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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.