Finding the Fourth Proportional to 109,347.05, 164,020.51 and 84,423.49
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Solution
The fourth proportional to 109,347.05, 164,020.51 and 84,423.49 is: 126,635.18
Step by Step Solution
- Step 1: Write the proportion equation
109,347.05 : 164,020.51 = 84,423.49 : x - Step 2: Convert to fraction form
109,347.05/164,020.51 = 84,423.49/x - Step 3: Cross multiply
109,347.05x = 164,020.51 × 84,423.49 - Step 4: Simplify right side
109,347.05x = 13,847,182,854.62 - Step 5: Solve for x
x = 13,847,182,854.62/109,347.05 - Step 6: Final answer
x = 126,635.18
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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.