Finding the Fourth Proportional to 138,966.73, 191,699.98 and 84,535.54
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Solution
The fourth proportional to 138,966.73, 191,699.98 and 84,535.54 is: 116,613.96
Step by Step Solution
- Step 1: Write the proportion equation
138,966.73 : 191,699.98 = 84,535.54 : x - Step 2: Convert to fraction form
138,966.73/191,699.98 = 84,535.54/x - Step 3: Cross multiply
138,966.73x = 191,699.98 × 84,535.54 - Step 4: Simplify right side
138,966.73x = 16,205,460,636.70 - Step 5: Solve for x
x = 16,205,460,636.70/138,966.73 - Step 6: Final answer
x = 116,613.96
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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.