Finding the Fourth Proportional to 122,960.70, 184,408.65 and 38,720.70
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Solution
The fourth proportional to 122,960.70, 184,408.65 and 38,720.70 is: 58,070.85
Step by Step Solution
- Step 1: Write the proportion equation
122,960.70 : 184,408.65 = 38,720.70 : x - Step 2: Convert to fraction form
122,960.70/184,408.65 = 38,720.70/x - Step 3: Cross multiply
122,960.70x = 184,408.65 × 38,720.70 - Step 4: Simplify right side
122,960.70x = 7,140,432,014.06 - Step 5: Solve for x
x = 7,140,432,014.06/122,960.70 - Step 6: Final answer
x = 58,070.85
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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.