Finding the Fourth Proportional to 147,765.34, 203,889.08 and 83,220.75
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Solution
The fourth proportional to 147,765.34, 203,889.08 and 83,220.75 is: 114,829.38
Step by Step Solution
- Step 1: Write the proportion equation
147,765.34 : 203,889.08 = 83,220.75 : x - Step 2: Convert to fraction form
147,765.34/203,889.08 = 83,220.75/x - Step 3: Cross multiply
147,765.34x = 203,889.08 × 83,220.75 - Step 4: Simplify right side
147,765.34x = 16,967,802,754.14 - Step 5: Solve for x
x = 16,967,802,754.14/147,765.34 - Step 6: Final answer
x = 114,829.38
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1.5x scale
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.