Finding the Fourth Proportional to 101,315.85, 139,833.23 and 58,898.99
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Solution
The fourth proportional to 101,315.85, 139,833.23 and 58,898.99 is: 81,290.69
Step by Step Solution
- Step 1: Write the proportion equation
101,315.85 : 139,833.23 = 58,898.99 : x - Step 2: Convert to fraction form
101,315.85/139,833.23 = 58,898.99/x - Step 3: Cross multiply
101,315.85x = 139,833.23 × 58,898.99 - Step 4: Simplify right side
101,315.85x = 8,236,035,021.78 - Step 5: Solve for x
x = 8,236,035,021.78/101,315.85 - Step 6: Final answer
x = 81,290.69
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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.