Finding the Fourth Proportional to 145,830.16, 201,252.36 and 82,170.64
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Solution
The fourth proportional to 145,830.16, 201,252.36 and 82,170.64 is: 113,399.28
Step by Step Solution
- Step 1: Write the proportion equation
145,830.16 : 201,252.36 = 82,170.64 : x - Step 2: Convert to fraction form
145,830.16/201,252.36 = 82,170.64/x - Step 3: Cross multiply
145,830.16x = 201,252.36 × 82,170.64 - Step 4: Simplify right side
145,830.16x = 16,537,035,222.71 - Step 5: Solve for x
x = 16,537,035,222.71/145,830.16 - Step 6: Final answer
x = 113,399.28
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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.