Finding the Fourth Proportional to 156,971.80, 235,497.39 and 68,241.16
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Solution
The fourth proportional to 156,971.80, 235,497.39 and 68,241.16 is: 102,378.99
Step by Step Solution
- Step 1: Write the proportion equation
156,971.80 : 235,497.39 = 68,241.16 : x - Step 2: Convert to fraction form
156,971.80/235,497.39 = 68,241.16/x - Step 3: Cross multiply
156,971.80x = 235,497.39 × 68,241.16 - Step 4: Simplify right side
156,971.80x = 16,070,615,070.57 - Step 5: Solve for x
x = 16,070,615,070.57/156,971.80 - Step 6: Final answer
x = 102,378.99
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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.