Finding the Fourth Proportional to 139,243.91, 208,873.98 and 39,395.75
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Solution
The fourth proportional to 139,243.91, 208,873.98 and 39,395.75 is: 59,095.92
Step by Step Solution
- Step 1: Write the proportion equation
139,243.91 : 208,873.98 = 39,395.75 : x - Step 2: Convert to fraction form
139,243.91/208,873.98 = 39,395.75/x - Step 3: Cross multiply
139,243.91x = 208,873.98 × 39,395.75 - Step 4: Simplify right side
139,243.91x = 8,228,746,053.22 - Step 5: Solve for x
x = 8,228,746,053.22/139,243.91 - Step 6: Final answer
x = 59,095.92
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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.