Finding the Fourth Proportional to 100,628.00, 138,760.25 and 84,484.19
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Solution
The fourth proportional to 100,628.00, 138,760.25 and 84,484.19 is: 116,498.86
Step by Step Solution
- Step 1: Write the proportion equation
100,628.00 : 138,760.25 = 84,484.19 : x - Step 2: Convert to fraction form
100,628.00/138,760.25 = 84,484.19/x - Step 3: Cross multiply
100,628.00x = 138,760.25 × 84,484.19 - Step 4: Simplify right side
100,628.00x = 11,723,046,209.23 - Step 5: Solve for x
x = 11,723,046,209.23/100,628.00 - Step 6: Final answer
x = 116,498.86
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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.