Finding the Fourth Proportional to 153,683.35, 212,070.11 and 85,694.99
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Solution
The fourth proportional to 153,683.35, 212,070.11 and 85,694.99 is: 118,251.88
Step by Step Solution
- Step 1: Write the proportion equation
153,683.35 : 212,070.11 = 85,694.99 : x - Step 2: Convert to fraction form
153,683.35/212,070.11 = 85,694.99/x - Step 3: Cross multiply
153,683.35x = 212,070.11 × 85,694.99 - Step 4: Simplify right side
153,683.35x = 18,173,344,466.92 - Step 5: Solve for x
x = 18,173,344,466.92/153,683.35 - Step 6: Final answer
x = 118,251.88
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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.