Finding the Fourth Proportional to 197,631.93, 272,731.75 and 106,987.87
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Solution
The fourth proportional to 197,631.93, 272,731.75 and 106,987.87 is: 147,643.09
Step by Step Solution
- Step 1: Write the proportion equation
197,631.93 : 272,731.75 = 106,987.87 : x - Step 2: Convert to fraction form
197,631.93/272,731.75 = 106,987.87/x - Step 3: Cross multiply
197,631.93x = 272,731.75 × 106,987.87 - Step 4: Simplify right side
197,631.93x = 29,178,989,013.87 - Step 5: Solve for x
x = 29,178,989,013.87/197,631.93 - Step 6: Final answer
x = 147,643.09
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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.