Finding the Fourth Proportional to 197,122.64, 272,029.35 and 106,478.60
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Solution
The fourth proportional to 197,122.64, 272,029.35 and 106,478.60 is: 146,940.53
Step by Step Solution
- Step 1: Write the proportion equation
197,122.64 : 272,029.35 = 106,478.60 : x - Step 2: Convert to fraction form
197,122.64/272,029.35 = 106,478.60/x - Step 3: Cross multiply
197,122.64x = 272,029.35 × 106,478.60 - Step 4: Simplify right side
197,122.64x = 28,965,304,346.91 - Step 5: Solve for x
x = 28,965,304,346.91/197,122.64 - Step 6: Final answer
x = 146,940.53
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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.