Finding the Fourth Proportional to 156,736.10, 235,204.95 and 86,665.70
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Solution
The fourth proportional to 156,736.10, 235,204.95 and 86,665.70 is: 130,054.29
Step by Step Solution
- Step 1: Write the proportion equation
156,736.10 : 235,204.95 = 86,665.70 : x - Step 2: Convert to fraction form
156,736.10/235,204.95 = 86,665.70/x - Step 3: Cross multiply
156,736.10x = 235,204.95 × 86,665.70 - Step 4: Simplify right side
156,736.10x = 20,384,201,635.22 - Step 5: Solve for x
x = 20,384,201,635.22/156,736.10 - Step 6: Final answer
x = 130,054.29
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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.