Finding the Fourth Proportional to 118,307.39, 177,178.17 and 68,235.68
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Solution
The fourth proportional to 118,307.39, 177,178.17 and 68,235.68 is: 102,190.34
Step by Step Solution
- Step 1: Write the proportion equation
118,307.39 : 177,178.17 = 68,235.68 : x - Step 2: Convert to fraction form
118,307.39/177,178.17 = 68,235.68/x - Step 3: Cross multiply
118,307.39x = 177,178.17 × 68,235.68 - Step 4: Simplify right side
118,307.39x = 12,089,872,025.21 - Step 5: Solve for x
x = 12,089,872,025.21/118,307.39 - Step 6: Final answer
x = 102,190.34
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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.