Finding the Fourth Proportional to 156,843.96, 216,420.30 and 93,180.12
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Solution
The fourth proportional to 156,843.96, 216,420.30 and 93,180.12 is: 128,574.09
Step by Step Solution
- Step 1: Write the proportion equation
156,843.96 : 216,420.30 = 93,180.12 : x - Step 2: Convert to fraction form
156,843.96/216,420.30 = 93,180.12/x - Step 3: Cross multiply
156,843.96x = 216,420.30 × 93,180.12 - Step 4: Simplify right side
156,843.96x = 20,166,069,524.44 - Step 5: Solve for x
x = 20,166,069,524.44/156,843.96 - Step 6: Final answer
x = 128,574.09
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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.