Finding the Fourth Proportional to 156,736.35, 235,205.33 and 86,665.95
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Solution
The fourth proportional to 156,736.35, 235,205.33 and 86,665.95 is: 130,054.66
Step by Step Solution
- Step 1: Write the proportion equation
156,736.35 : 235,205.33 = 86,665.95 : x - Step 2: Convert to fraction form
156,736.35/235,205.33 = 86,665.95/x - Step 3: Cross multiply
156,736.35x = 235,205.33 × 86,665.95 - Step 4: Simplify right side
156,736.35x = 20,384,292,936.18 - Step 5: Solve for x
x = 20,384,292,936.18/156,736.35 - Step 6: Final answer
x = 130,054.66
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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.