Finding the Fourth Proportional to 116,243.66, 160,374.99 and 75,980.68
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Solution
The fourth proportional to 116,243.66, 160,374.99 and 75,980.68 is: 104,826.37
Step by Step Solution
- Step 1: Write the proportion equation
116,243.66 : 160,374.99 = 75,980.68 : x - Step 2: Convert to fraction form
116,243.66/160,374.99 = 75,980.68/x - Step 3: Cross multiply
116,243.66x = 160,374.99 × 75,980.68 - Step 4: Simplify right side
116,243.66x = 12,185,400,795.19 - Step 5: Solve for x
x = 12,185,400,795.19/116,243.66 - Step 6: Final answer
x = 104,826.37
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1.5x scale
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.