Finding the Fourth Proportional to 122,981.08, 184,395.84 and 48,013.96
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Solution
The fourth proportional to 122,981.08, 184,395.84 and 48,013.96 is: 71,991.35
Step by Step Solution
- Step 1: Write the proportion equation
122,981.08 : 184,395.84 = 48,013.96 : x - Step 2: Convert to fraction form
122,981.08/184,395.84 = 48,013.96/x - Step 3: Cross multiply
122,981.08x = 184,395.84 × 48,013.96 - Step 4: Simplify right side
122,981.08x = 8,853,574,485.93 - Step 5: Solve for x
x = 8,853,574,485.93/122,981.08 - Step 6: Final answer
x = 71,991.35
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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.