Finding the Fourth Proportional to 131,254.63, 181,132.12 and 74,666.00
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Solution
The fourth proportional to 131,254.63, 181,132.12 and 74,666.00 is: 103,039.50
Step by Step Solution
- Step 1: Write the proportion equation
131,254.63 : 181,132.12 = 74,666.00 : x - Step 2: Convert to fraction form
131,254.63/181,132.12 = 74,666.00/x - Step 3: Cross multiply
131,254.63x = 181,132.12 × 74,666.00 - Step 4: Simplify right side
131,254.63x = 13,524,411,628.08 - Step 5: Solve for x
x = 13,524,411,628.08/131,254.63 - Step 6: Final answer
x = 103,039.50
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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.