Finding the Fourth Proportional to 116,291.44, 160,507.16 and 70,959.68
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Solution
The fourth proportional to 116,291.44, 160,507.16 and 70,959.68 is: 97,939.60
Step by Step Solution
- Step 1: Write the proportion equation
116,291.44 : 160,507.16 = 70,959.68 : x - Step 2: Convert to fraction form
116,291.44/160,507.16 = 70,959.68/x - Step 3: Cross multiply
116,291.44x = 160,507.16 × 70,959.68 - Step 4: Simplify right side
116,291.44x = 11,389,536,711.31 - Step 5: Solve for x
x = 11,389,536,711.31/116,291.44 - Step 6: Final answer
x = 97,939.60
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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.