Finding the Fourth Proportional to 134,886.99, 186,144.08 and 74,457.67
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Solution
The fourth proportional to 134,886.99, 186,144.08 and 74,457.67 is: 102,751.60
Step by Step Solution
- Step 1: Write the proportion equation
134,886.99 : 186,144.08 = 74,457.67 : x - Step 2: Convert to fraction form
134,886.99/186,144.08 = 74,457.67/x - Step 3: Cross multiply
134,886.99x = 186,144.08 × 74,457.67 - Step 4: Simplify right side
134,886.99x = 13,859,854,481.09 - Step 5: Solve for x
x = 13,859,854,481.09/134,886.99 - Step 6: Final answer
x = 102,751.60
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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.