Finding the Fourth Proportional to 134,855.98, 186,101.12 and 74,426.66
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Solution
The fourth proportional to 134,855.98, 186,101.12 and 74,426.66 is: 102,708.71
Step by Step Solution
- Step 1: Write the proportion equation
134,855.98 : 186,101.12 = 74,426.66 : x - Step 2: Convert to fraction form
134,855.98/186,101.12 = 74,426.66/x - Step 3: Cross multiply
134,855.98x = 186,101.12 × 74,426.66 - Step 4: Simplify right side
134,855.98x = 13,850,883,481.22 - Step 5: Solve for x
x = 13,850,883,481.22/134,855.98 - Step 6: Final answer
x = 102,708.71
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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.