Finding the Fourth Proportional to 178,217.91, 245,940.65 and 106,614.75
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Solution
The fourth proportional to 178,217.91, 245,940.65 and 106,614.75 is: 147,128.31
Step by Step Solution
- Step 1: Write the proportion equation
178,217.91 : 245,940.65 = 106,614.75 : x - Step 2: Convert to fraction form
178,217.91/245,940.65 = 106,614.75/x - Step 3: Cross multiply
178,217.91x = 245,940.65 × 106,614.75 - Step 4: Simplify right side
178,217.91x = 26,220,900,381.51 - Step 5: Solve for x
x = 26,220,900,381.51/178,217.91 - Step 6: Final answer
x = 147,128.31
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.