Finding the Fourth Proportional to 118,191.18, 163,793.84 and 115,948.29
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Solution
The fourth proportional to 118,191.18, 163,793.84 and 115,948.29 is: 160,685.55
Step by Step Solution
- Step 1: Write the proportion equation
118,191.18 : 163,793.84 = 115,948.29 : x - Step 2: Convert to fraction form
118,191.18/163,793.84 = 115,948.29/x - Step 3: Cross multiply
118,191.18x = 163,793.84 × 115,948.29 - Step 4: Simplify right side
118,191.18x = 18,991,615,080.79 - Step 5: Solve for x
x = 18,991,615,080.79/118,191.18 - Step 6: Final answer
x = 160,685.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.