Finding the Fourth Proportional to 139,176.03, 208,777.71 and 39,336.99
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Solution
The fourth proportional to 139,176.03, 208,777.71 and 39,336.99 is: 59,009.35
Step by Step Solution
- Step 1: Write the proportion equation
139,176.03 : 208,777.71 = 39,336.99 : x - Step 2: Convert to fraction form
139,176.03/208,777.71 = 39,336.99/x - Step 3: Cross multiply
139,176.03x = 208,777.71 × 39,336.99 - Step 4: Simplify right side
139,176.03x = 8,212,686,690.49 - Step 5: Solve for x
x = 8,212,686,690.49/139,176.03 - Step 6: Final answer
x = 59,009.35
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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.