Finding the Fourth Proportional to 118,647.99, 163,734.11 and 66,975.96
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Solution
The fourth proportional to 118,647.99, 163,734.11 and 66,975.96 is: 92,426.76
Step by Step Solution
- Step 1: Write the proportion equation
118,647.99 : 163,734.11 = 66,975.96 : x - Step 2: Convert to fraction form
118,647.99/163,734.11 = 66,975.96/x - Step 3: Cross multiply
118,647.99x = 163,734.11 × 66,975.96 - Step 4: Simplify right side
118,647.99x = 10,966,248,867.12 - Step 5: Solve for x
x = 10,966,248,867.12/118,647.99 - Step 6: Final answer
x = 92,426.76
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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.