Finding the Fourth Proportional to 153,684.35, 212,071.48 and 85,695.99
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Solution
The fourth proportional to 153,684.35, 212,071.48 and 85,695.99 is: 118,253.26
Step by Step Solution
- Step 1: Write the proportion equation
153,684.35 : 212,071.48 = 85,695.99 : x - Step 2: Convert to fraction form
153,684.35/212,071.48 = 85,695.99/x - Step 3: Cross multiply
153,684.35x = 212,071.48 × 85,695.99 - Step 4: Simplify right side
153,684.35x = 18,173,675,429.37 - Step 5: Solve for x
x = 18,173,675,429.37/153,684.35 - Step 6: Final answer
x = 118,253.26
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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.