Finding the Fourth Proportional to 122,953.80, 184,430.70 and 39,847.80
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Solution
The fourth proportional to 122,953.80, 184,430.70 and 39,847.80 is: 59,771.70
Step by Step Solution
- Step 1: Write the proportion equation
122,953.80 : 184,430.70 = 39,847.80 : x - Step 2: Convert to fraction form
122,953.80/184,430.70 = 39,847.80/x - Step 3: Cross multiply
122,953.80x = 184,430.70 × 39,847.80 - Step 4: Simplify right side
122,953.80x = 7,349,157,647.46 - Step 5: Solve for x
x = 7,349,157,647.46/122,953.80 - Step 6: Final answer
x = 59,771.70
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1.5x scale
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.