Finding the Fourth Proportional to 117,346.55, 161,937.36 and 63,631.49
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Solution
The fourth proportional to 117,346.55, 161,937.36 and 63,631.49 is: 87,810.98
Step by Step Solution
- Step 1: Write the proportion equation
117,346.55 : 161,937.36 = 63,631.49 : x - Step 2: Convert to fraction form
117,346.55/161,937.36 = 63,631.49/x - Step 3: Cross multiply
117,346.55x = 161,937.36 × 63,631.49 - Step 4: Simplify right side
117,346.55x = 10,304,315,908.31 - Step 5: Solve for x
x = 10,304,315,908.31/117,346.55 - Step 6: Final answer
x = 87,810.98
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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.