Finding the Fourth Proportional to 134,439.81, 201,724.98 and 84,543.40
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Solution
The fourth proportional to 134,439.81, 201,724.98 and 84,543.40 is: 126,856.14
Step by Step Solution
- Step 1: Write the proportion equation
134,439.81 : 201,724.98 = 84,543.40 : x - Step 2: Convert to fraction form
134,439.81/201,724.98 = 84,543.40/x - Step 3: Cross multiply
134,439.81x = 201,724.98 × 84,543.40 - Step 4: Simplify right side
134,439.81x = 17,054,515,674.13 - Step 5: Solve for x
x = 17,054,515,674.13/134,439.81 - Step 6: Final answer
x = 126,856.14
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.