Finding the Fourth Proportional to 122,947.30, 184,420.95 and 112,449.70
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Solution
The fourth proportional to 122,947.30, 184,420.95 and 112,449.70 is: 168,674.55
Step by Step Solution
- Step 1: Write the proportion equation
122,947.30 : 184,420.95 = 112,449.70 : x - Step 2: Convert to fraction form
122,947.30/184,420.95 = 112,449.70/x - Step 3: Cross multiply
122,947.30x = 184,420.95 × 112,449.70 - Step 4: Simplify right side
122,947.30x = 20,738,080,501.22 - Step 5: Solve for x
x = 20,738,080,501.22/122,947.30 - Step 6: Final answer
x = 168,674.55
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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.