Finding the Fourth Proportional to 145,953.01, 201,369.20 and 115,229.31
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Solution
The fourth proportional to 145,953.01, 201,369.20 and 115,229.31 is: 158,980.17
Step by Step Solution
- Step 1: Write the proportion equation
145,953.01 : 201,369.20 = 115,229.31 : x - Step 2: Convert to fraction form
145,953.01/201,369.20 = 115,229.31/x - Step 3: Cross multiply
145,953.01x = 201,369.20 × 115,229.31 - Step 4: Simplify right side
145,953.01x = 23,203,633,971.25 - Step 5: Solve for x
x = 23,203,633,971.25/145,953.01 - Step 6: Final answer
x = 158,980.17
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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.