Finding the Fourth Proportional to 135,354.68, 186,787.19 and 74,924.02
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Solution
The fourth proportional to 135,354.68, 186,787.19 and 74,924.02 is: 103,393.89
Step by Step Solution
- Step 1: Write the proportion equation
135,354.68 : 186,787.19 = 74,924.02 : x - Step 2: Convert to fraction form
135,354.68/186,787.19 = 74,924.02/x - Step 3: Cross multiply
135,354.68x = 186,787.19 × 74,924.02 - Step 4: Simplify right side
135,354.68x = 13,994,847,159.30 - Step 5: Solve for x
x = 13,994,847,159.30/135,354.68 - Step 6: Final answer
x = 103,393.89
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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.