Finding the Fourth Proportional to 83,722.08, 125,572.32 and 69,769.20
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Solution
The fourth proportional to 83,722.08, 125,572.32 and 69,769.20 is: 104,644.80
Step by Step Solution
- Step 1: Write the proportion equation
83,722.08 : 125,572.32 = 69,769.20 : x - Step 2: Convert to fraction form
83,722.08/125,572.32 = 69,769.20/x - Step 3: Cross multiply
83,722.08x = 125,572.32 × 69,769.20 - Step 4: Simplify right side
83,722.08x = 8,761,080,308.54 - Step 5: Solve for x
x = 8,761,080,308.54/83,722.08 - Step 6: Final answer
x = 104,644.80
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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.