Finding the Fourth Proportional to 197,155.68, 272,074.64 and 107,731.68
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Solution
The fourth proportional to 197,155.68, 272,074.64 and 107,731.68 is: 148,669.61
Step by Step Solution
- Step 1: Write the proportion equation
197,155.68 : 272,074.64 = 107,731.68 : x - Step 2: Convert to fraction form
197,155.68/272,074.64 = 107,731.68/x - Step 3: Cross multiply
197,155.68x = 272,074.64 × 107,731.68 - Step 4: Simplify right side
197,155.68x = 29,311,058,052.60 - Step 5: Solve for x
x = 29,311,058,052.60/197,155.68 - Step 6: Final answer
x = 148,669.61
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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.