Finding the Fourth Proportional to 139,204.16, 208,666.08 and 80,022.08
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Solution
The fourth proportional to 139,204.16, 208,666.08 and 80,022.08 is: 119,952.55
Step by Step Solution
- Step 1: Write the proportion equation
139,204.16 : 208,666.08 = 80,022.08 : x - Step 2: Convert to fraction form
139,204.16/208,666.08 = 80,022.08/x - Step 3: Cross multiply
139,204.16x = 208,666.08 × 80,022.08 - Step 4: Simplify right side
139,204.16x = 16,697,893,747.05 - Step 5: Solve for x
x = 16,697,893,747.05/139,204.16 - Step 6: Final answer
x = 119,952.55
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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.