Finding the Fourth Proportional to 135,043.65, 186,344.15 and 74,610.63
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Solution
The fourth proportional to 135,043.65, 186,344.15 and 74,610.63 is: 102,953.78
Step by Step Solution
- Step 1: Write the proportion equation
135,043.65 : 186,344.15 = 74,610.63 : x - Step 2: Convert to fraction form
135,043.65/186,344.15 = 74,610.63/x - Step 3: Cross multiply
135,043.65x = 186,344.15 × 74,610.63 - Step 4: Simplify right side
135,043.65x = 13,903,254,055.26 - Step 5: Solve for x
x = 13,903,254,055.26/135,043.65 - Step 6: Final answer
x = 102,953.78
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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.