Finding the Fourth Proportional to 134,886.60, 186,153.84 and 74,468.92
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Solution
The fourth proportional to 134,886.60, 186,153.84 and 74,468.92 is: 102,772.81
Step by Step Solution
- Step 1: Write the proportion equation
134,886.60 : 186,153.84 = 74,468.92 : x - Step 2: Convert to fraction form
134,886.60/186,153.84 = 74,468.92/x - Step 3: Cross multiply
134,886.60x = 186,153.84 × 74,468.92 - Step 4: Simplify right side
134,886.60x = 13,862,675,418.65 - Step 5: Solve for x
x = 13,862,675,418.65/134,886.60 - Step 6: Final answer
x = 102,772.81
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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.