Finding the Fourth Proportional to 134,878.96, 186,132.98 and 74,449.63
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Solution
The fourth proportional to 134,878.96, 186,132.98 and 74,449.63 is: 102,740.50
Step by Step Solution
- Step 1: Write the proportion equation
134,878.96 : 186,132.98 = 74,449.63 : x - Step 2: Convert to fraction form
134,878.96/186,132.98 = 74,449.63/x - Step 3: Cross multiply
134,878.96x = 186,132.98 × 74,449.63 - Step 4: Simplify right side
134,878.96x = 13,857,531,491.80 - Step 5: Solve for x
x = 13,857,531,491.80/134,878.96 - Step 6: Final answer
x = 102,740.50
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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.