Finding the Fourth Proportional to 118,701.84, 177,929.71 and 74,226.49
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Solution
The fourth proportional to 118,701.84, 177,929.71 and 74,226.49 is: 111,262.79
Step by Step Solution
- Step 1: Write the proportion equation
118,701.84 : 177,929.71 = 74,226.49 : x - Step 2: Convert to fraction form
118,701.84/177,929.71 = 74,226.49/x - Step 3: Cross multiply
118,701.84x = 177,929.71 × 74,226.49 - Step 4: Simplify right side
118,701.84x = 13,207,097,840.02 - Step 5: Solve for x
x = 13,207,097,840.02/118,701.84 - Step 6: Final answer
x = 111,262.79
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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.