Finding the Fourth Proportional to 117,866.49, 162,659.21 and 64,154.99
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Solution
The fourth proportional to 117,866.49, 162,659.21 and 64,154.99 is: 88,535.76
Step by Step Solution
- Step 1: Write the proportion equation
117,866.49 : 162,659.21 = 64,154.99 : x - Step 2: Convert to fraction form
117,866.49/162,659.21 = 64,154.99/x - Step 3: Cross multiply
117,866.49x = 162,659.21 × 64,154.99 - Step 4: Simplify right side
117,866.49x = 10,435,398,856.89 - Step 5: Solve for x
x = 10,435,398,856.89/117,866.49 - Step 6: Final answer
x = 88,535.76
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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.