Finding the Fourth Proportional to 135,170.04, 186,531.35 and 74,739.09
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Solution
The fourth proportional to 135,170.04, 186,531.35 and 74,739.09 is: 103,138.11
Step by Step Solution
- Step 1: Write the proportion equation
135,170.04 : 186,531.35 = 74,739.09 : x - Step 2: Convert to fraction form
135,170.04/186,531.35 = 74,739.09/x - Step 3: Cross multiply
135,170.04x = 186,531.35 × 74,739.09 - Step 4: Simplify right side
135,170.04x = 13,941,182,981.78 - Step 5: Solve for x
x = 13,941,182,981.78/135,170.04 - Step 6: Final answer
x = 103,138.11
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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.