Finding the Fourth Proportional to 145,873.78, 201,228.67 and 100,473.68
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Solution
The fourth proportional to 145,873.78, 201,228.67 and 100,473.68 is: 138,600.54
Step by Step Solution
- Step 1: Write the proportion equation
145,873.78 : 201,228.67 = 100,473.68 : x - Step 2: Convert to fraction form
145,873.78/201,228.67 = 100,473.68/x - Step 3: Cross multiply
145,873.78x = 201,228.67 × 100,473.68 - Step 4: Simplify right side
145,873.78x = 20,218,184,996.41 - Step 5: Solve for x
x = 20,218,184,996.41/145,873.78 - Step 6: Final answer
x = 138,600.54
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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.