Finding the Fourth Proportional to 101,516.13, 140,092.58 and 54,948.99
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Solution
The fourth proportional to 101,516.13, 140,092.58 and 54,948.99 is: 75,829.78
Step by Step Solution
- Step 1: Write the proportion equation
101,516.13 : 140,092.58 = 54,948.99 : x - Step 2: Convert to fraction form
101,516.13/140,092.58 = 54,948.99/x - Step 3: Cross multiply
101,516.13x = 140,092.58 × 54,948.99 - Step 4: Simplify right side
101,516.13x = 7,697,945,777.49 - Step 5: Solve for x
x = 7,697,945,777.49/101,516.13 - Step 6: Final answer
x = 75,829.78
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1.5x scale
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.