Finding the Fourth Proportional to 106,818.48, 147,565.80 and 84,306.96
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Solution
The fourth proportional to 106,818.48, 147,565.80 and 84,306.96 is: 116,466.96
Step by Step Solution
- Step 1: Write the proportion equation
106,818.48 : 147,565.80 = 84,306.96 : x - Step 2: Convert to fraction form
106,818.48/147,565.80 = 84,306.96/x - Step 3: Cross multiply
106,818.48x = 147,565.80 × 84,306.96 - Step 4: Simplify right side
106,818.48x = 12,440,823,997.97 - Step 5: Solve for x
x = 12,440,823,997.97/106,818.48 - Step 6: Final answer
x = 116,466.96
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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.