Finding the Fourth Proportional to 134,772.80, 202,207.80 and 55,911.20
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Solution
The fourth proportional to 134,772.80, 202,207.80 and 55,911.20 is: 83,886.96
Step by Step Solution
- Step 1: Write the proportion equation
134,772.80 : 202,207.80 = 55,911.20 : x - Step 2: Convert to fraction form
134,772.80/202,207.80 = 55,911.20/x - Step 3: Cross multiply
134,772.80x = 202,207.80 × 55,911.20 - Step 4: Simplify right side
134,772.80x = 11,305,680,747.36 - Step 5: Solve for x
x = 11,305,680,747.36/134,772.80 - Step 6: Final answer
x = 83,886.96
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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.