Finding the Fourth Proportional to 145,678.08, 201,035.52 and 82,012.80
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Solution
The fourth proportional to 145,678.08, 201,035.52 and 82,012.80 is: 113,177.53
Step by Step Solution
- Step 1: Write the proportion equation
145,678.08 : 201,035.52 = 82,012.80 : x - Step 2: Convert to fraction form
145,678.08/201,035.52 = 82,012.80/x - Step 3: Cross multiply
145,678.08x = 201,035.52 × 82,012.80 - Step 4: Simplify right side
145,678.08x = 16,487,485,894.66 - Step 5: Solve for x
x = 16,487,485,894.66/145,678.08 - Step 6: Final answer
x = 113,177.53
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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.