Finding the Fourth Proportional to 118,618.20, 177,927.30 and 48,547.80
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Solution
The fourth proportional to 118,618.20, 177,927.30 and 48,547.80 is: 72,821.70
Step by Step Solution
- Step 1: Write the proportion equation
118,618.20 : 177,927.30 = 48,547.80 : x - Step 2: Convert to fraction form
118,618.20/177,927.30 = 48,547.80/x - Step 3: Cross multiply
118,618.20x = 177,927.30 × 48,547.80 - Step 4: Simplify right side
118,618.20x = 8,637,978,974.94 - Step 5: Solve for x
x = 8,637,978,974.94/118,618.20 - Step 6: Final answer
x = 72,821.70
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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.