Finding the Fourth Proportional to 190,631.68, 263,103.28 and 105,776.08
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Solution
The fourth proportional to 190,631.68, 263,103.28 and 105,776.08 is: 145,988.50
Step by Step Solution
- Step 1: Write the proportion equation
190,631.68 : 263,103.28 = 105,776.08 : x - Step 2: Convert to fraction form
190,631.68/263,103.28 = 105,776.08/x - Step 3: Cross multiply
190,631.68x = 263,103.28 × 105,776.08 - Step 4: Simplify right side
190,631.68x = 27,830,033,593.54 - Step 5: Solve for x
x = 27,830,033,593.54/190,631.68 - Step 6: Final answer
x = 145,988.50
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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.