Finding the Fourth Proportional to 93,609.40, 140,195.40 and 91,730.20
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Solution
The fourth proportional to 93,609.40, 140,195.40 and 91,730.20 is: 137,380.99
Step by Step Solution
- Step 1: Write the proportion equation
93,609.40 : 140,195.40 = 91,730.20 : x - Step 2: Convert to fraction form
93,609.40/140,195.40 = 91,730.20/x - Step 3: Cross multiply
93,609.40x = 140,195.40 × 91,730.20 - Step 4: Simplify right side
93,609.40x = 12,860,152,081.08 - Step 5: Solve for x
x = 12,860,152,081.08/93,609.40 - Step 6: Final answer
x = 137,380.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.