Finding the Fourth Proportional to 117,356.49, 161,952.05 and 63,641.50
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Solution
The fourth proportional to 117,356.49, 161,952.05 and 63,641.50 is: 87,825.32
Step by Step Solution
- Step 1: Write the proportion equation
117,356.49 : 161,952.05 = 63,641.50 : x - Step 2: Convert to fraction form
117,356.49/161,952.05 = 63,641.50/x - Step 3: Cross multiply
117,356.49x = 161,952.05 × 63,641.50 - Step 4: Simplify right side
117,356.49x = 10,306,871,390.08 - Step 5: Solve for x
x = 10,306,871,390.08/117,356.49 - Step 6: Final answer
x = 87,825.32
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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.