Finding the Fourth Proportional to 102,321.99, 153,483.12 and 39,948.75
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Solution
The fourth proportional to 102,321.99, 153,483.12 and 39,948.75 is: 59,923.18
Step by Step Solution
- Step 1: Write the proportion equation
102,321.99 : 153,483.12 = 39,948.75 : x - Step 2: Convert to fraction form
102,321.99/153,483.12 = 39,948.75/x - Step 3: Cross multiply
102,321.99x = 153,483.12 × 39,948.75 - Step 4: Simplify right side
102,321.99x = 6,131,458,790.10 - Step 5: Solve for x
x = 6,131,458,790.10/102,321.99 - Step 6: Final answer
x = 59,923.18
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.