Finding the Fourth Proportional to 118,661.36, 178,115.08 and 79,492.19
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Solution
The fourth proportional to 118,661.36, 178,115.08 and 79,492.19 is: 119,320.71
Step by Step Solution
- Step 1: Write the proportion equation
118,661.36 : 178,115.08 = 79,492.19 : x - Step 2: Convert to fraction form
118,661.36/178,115.08 = 79,492.19/x - Step 3: Cross multiply
118,661.36x = 178,115.08 × 79,492.19 - Step 4: Simplify right side
118,661.36x = 14,158,757,781.23 - Step 5: Solve for x
x = 14,158,757,781.23/118,661.36 - Step 6: Final answer
x = 119,320.71
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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.