Finding the Fourth Proportional to 117,435.99, 162,059.58 and 71,479.02
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Solution
The fourth proportional to 117,435.99, 162,059.58 and 71,479.02 is: 98,639.78
Step by Step Solution
- Step 1: Write the proportion equation
117,435.99 : 162,059.58 = 71,479.02 : x - Step 2: Convert to fraction form
117,435.99/162,059.58 = 71,479.02/x - Step 3: Cross multiply
117,435.99x = 162,059.58 × 71,479.02 - Step 4: Simplify right side
117,435.99x = 11,583,859,960.01 - Step 5: Solve for x
x = 11,583,859,960.01/117,435.99 - Step 6: Final answer
x = 98,639.78
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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.