Finding the Fourth Proportional to 145,742.08, 201,174.42 and 85,332.14
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Solution
The fourth proportional to 145,742.08, 201,174.42 and 85,332.14 is: 117,787.83
Step by Step Solution
- Step 1: Write the proportion equation
145,742.08 : 201,174.42 = 85,332.14 : x - Step 2: Convert to fraction form
145,742.08/201,174.42 = 85,332.14/x - Step 3: Cross multiply
145,742.08x = 201,174.42 × 85,332.14 - Step 4: Simplify right side
145,742.08x = 17,166,643,771.86 - Step 5: Solve for x
x = 17,166,643,771.86/145,742.08 - Step 6: Final answer
x = 117,787.83
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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.