Finding the Fourth Proportional to 79,416.13, 119,695.02 and 68,455.11
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Solution
The fourth proportional to 79,416.13, 119,695.02 and 68,455.11 is: 103,174.70
Step by Step Solution
- Step 1: Write the proportion equation
79,416.13 : 119,695.02 = 68,455.11 : x - Step 2: Convert to fraction form
79,416.13/119,695.02 = 68,455.11/x - Step 3: Cross multiply
79,416.13x = 119,695.02 × 68,455.11 - Step 4: Simplify right side
79,416.13x = 8,193,735,760.55 - Step 5: Solve for x
x = 8,193,735,760.55/79,416.13 - Step 6: Final answer
x = 103,174.70
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.