Finding the Fourth Proportional to 118,790.55, 163,935.09 and 65,080.26
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Solution
The fourth proportional to 118,790.55, 163,935.09 and 65,080.26 is: 89,813.02
Step by Step Solution
- Step 1: Write the proportion equation
118,790.55 : 163,935.09 = 65,080.26 : x - Step 2: Convert to fraction form
118,790.55/163,935.09 = 65,080.26/x - Step 3: Cross multiply
118,790.55x = 163,935.09 × 65,080.26 - Step 4: Simplify right side
118,790.55x = 10,668,938,280.32 - Step 5: Solve for x
x = 10,668,938,280.32/118,790.55 - Step 6: Final answer
x = 89,813.02
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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.